搜索: a264054-编号:a264053
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A264142型
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| T(n,k)=(n+1)X(k+1)个排列数组的数量,其中每个元素的索引变化为+-(.,.)0,0 1,-2或1,1。 |
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+10 9
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2, 8, 4, 18, 27, 8, 45, 144, 125, 16, 125, 720, 1440, 512, 32, 320, 3600, 15488, 14400, 2197, 64, 832, 18000, 168948, 297920, 144000, 9261, 128, 2197, 90000, 1903336, 7001316, 5953600, 1440000, 39304, 256, 5733, 450000, 20768650, 163887724
(列表;桌子;图表;参考;听;历史;文本;内部格式)
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抵消
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1,1
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评论
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表格开始
...2.....8.......18.........45..........125.............320...............832
...4....27......144........720.........3600...........18000.............90000
...8...125.....1440......15488.......168948.........1903336..........20768650
..16...512....14400.....297920......7001316.......163887724........3798503424
..32..2197...144000....5953600....302693857.....15238898080......758116015189
..64..9261..1440000..117534144..12968882161...1376159333484...147813083354689
.128.39304.14400000.2330885440.557669432592.125699825697364.29086230347332416
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链接
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配方奶粉
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k列的经验值:
k=1:a(n)=2*a(n-1)
k=2:a(n)=3*a(n-1)+6*a(n-2)-3*a(n-3)-a(n-4)
k=3:n>2时,a(n)=10*a(n-1)
k=4:[顺序8]
k=5:[顺序32]
k=6:[订单95]
第n行的经验值:
n=1:a(n)=3*a(n-1)-a(n-2)+3*a(n-3)-9*a(4-4)+3*a(n-5)-a
n=2:a(n)=5*a(n-1),对于n>3
n=3:[订单67]
n=4:[订单95]
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例子
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n=3 k=4的一些解
..0..1..2..6..4....6..1..2..3..4....6..1..8..9..4....6..7..5..9..4
..5..3..7.11.12...11..0.10..8..9....2..0..7.11..3....2..0..1..8..3
.10.17..9.16..8....7..5.12.13.17...10..5.12.16.17...10.11.15.13.17
.15.13.14.18.19...15.16.14.18.19...15.13.14.18.19...12.16.14.18.19
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交叉参考
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关键词
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作者
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状态
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经核准的
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