搜索: a221361-编号:a221361
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A221357型
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| 每个元素移动到某个水平、垂直或反对角线邻居后的n X 2占用阵列数,没有2个环路,并且占用不大于2。 |
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+10 1
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0, 5, 39, 292, 2088, 14799, 104532, 737498, 5200799, 36668393, 258507703, 1822366939, 12846614967, 90560097250, 638385027225, 4500153384191, 31722787454665, 223622276075576, 1576371711149454, 11112253094012636
(列表;图表;参考;听;历史;文本;内部格式)
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抵消
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1,2
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评论
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链接
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配方奶粉
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经验公式:a(n)=12*a(n-1)-38*a(n-2)+14*a(n3)+59*a(4-4)-21*a(v-5)-33*a(6-6)+16*a(7-7)。
经验公式:x^2*(5-21*x+14*x^2-4*x*^3-2*x^4+4*x^5)/(1-12*x+38*x^2-14*x^3-59*x^4+21*x^5+33*x^6-16*x^7)-科林·巴克,2018年8月5日
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例子
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n=3的一些解决方案:
..1..2....1..1....0..2....1..2....1..1....0..1....0..2....1..0....1..1....1..1
..1..1....1..2....1..1....1..1....2..2....1..1....1..2....2..1....1..1....2..1
..0..1....0..1....1..1....1..0....0..0....2..1....0..1....2..0....1..1....1..0
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交叉参考
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关键词
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非n
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作者
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状态
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经核准的
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A221358型
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| 每个元素移动到某个水平、垂直或反对角线邻居后的nX3占用阵列数,无2个环路,且占用不大于2 |
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+10 1
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0, 39, 791, 18738, 410571, 9021576, 197291655, 4313255090, 94259266376, 2059682765099, 45003771497723, 983297420299208, 21483920167245180, 469394579747198225, 10255579972679828734, 224068598231298074183
(列表;图表;参考;听;历史;文本;内部格式)
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1,2
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评论
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链接
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配方奶粉
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经验值:a(n)=55*a(n-1)-1084*a(n-2)+8549*a(n-3)-1355*a(n-4)-3850061*a(n-5)+1800306*a(n-6)+3048157*a(n-7)-40693450*a(n-8)+40463509*a(n-9)+38976177*a(n-10 a(n-15)+99995004390*a(n-16)+30116092385*a(n-17)-1917627065*a(n-18)-8399838021*a(n-19)-33520539625*a(n-20)+22367240257*a(-21)+129769144158*a(-n22)-170325950186*a(-23)-105655501048*a(-2-24)+272513454532*a(-25)+395496231*a(n-26)-109801210903*a(7-27)-258303659042*a 749420(n-32)+542792407937(n-33)+80707793127(n-34)-350739533054(n-35)+5434124804*a(n-36)+93044173858*a(n-37)+37885776912*a(-n38)-21512214212*a 48)-580856*a(n-49)+1360*a(n-50),对于n>52
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例子
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n=3的一些解
..1..1..1....1..1..0....0..2..1....1..2..1....1..1..1....1..0..0....1..2..1
..1..0..2....2..2..2....1..0..2....1..2..2....1..0..1....1..2..1....1..2..1
..0..2..1....1..0..0....0..2..1....0..0..0....2..1..1....2..2..0....1..0..0
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关键词
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非n
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作者
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状态
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经核准的
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A221359型
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| 每个元素移动到某个水平、垂直或反对角线邻居后的nX4占用阵列数,无2个环路,且占用不大于2 |
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+10 1
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0, 292, 18738, 1388784, 93433746, 6308646549, 423812250312, 28479671473807, 1913505400121105, 128574419200721801, 8639424408948675486, 580522160326792409378, 39007927353168721454490, 2621116666944612733670859
(列表;图表;参考;听;历史;文本;内部格式)
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抵消
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1,2
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评论
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链接
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例子
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n=3的一些解
..1..1..2..1....0..1..2..0....1..2..2..1....1..1..2..1....1..1..1..2
..1..0..1..1....2..0..1..1....0..2..0..1....1..1..1..2....1..0..2..2
..1..2..1..0....2..0..2..1....1..0..1..1....1..0..1..0....0..1..0..1
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关键词
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非n
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作者
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状态
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经核准的
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A221360型
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| 每个元素移动到某个水平、垂直或反对角线邻居后的nX5占用阵列数,无2个回路,且占用不大于2 |
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+10 0
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0, 2088, 410571, 93433746, 18970881500, 3872954657964, 786996595093490, 160119440729359632, 32584677552562837495, 6632852849038384025825
(列表;图表;参考;听;历史;文本;内部格式)
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抵消
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1,2
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评论
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链接
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例子
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n=3的一些解
..0..1..2..2..0....0..2..1..1..1....0..0..1..1..2....0..2..1..1..2
..0..1..1..1..1....0..1..1..2..1....1..1..2..2..1....1..0..1..2..1
..2..1..1..2..0....2..0..0..2..1....1..0..2..0..1....1..1..1..1..0
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关键词
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非n
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作者
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状态
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经核准的
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