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A269152型 |
| T(n,k)=n X k 0..3个数组的数量,其中有一些元素加上一些水平、反对角线或垂直相邻的元素,总共三个,正好一次。 |
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8
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0, 4, 4, 24, 80, 24, 108, 768, 768, 108, 432, 6224, 13904, 6224, 432, 1620, 46464, 220968, 220968, 46464, 1620, 5832, 330192, 3277728, 7002040, 3277728, 330192, 5832, 20412, 2270592, 46576336, 208984848, 208984848, 46576336, 2270592, 20412
(列表;桌子;图表;参考文献;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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表格开始
......0.........4............24..............108.................432
......4........80...........768.............6224...............46464
…..24…..768……..13904……..220968……..3277728
....108......6224........220968..........7002040...........208984848
....432.....46464.......3277728........208984848.........12637025328
...1620....330192......46576336.......6004186984........738478504448
...5832...2270592.....642676704.....167970539096......42119837369168
..20412..15251152....8680278136....4607603633440....2359047063894464
..69984.100647168..115349343264..124496158984840..130272136732736736
.236196.655139152.1513379596864.3323815506994632.7113223023541150960
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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)=6*a(n-1)-9*a(n-2)
k=2:a(n)=12*a(n-1)-38*a(n-2)+12*a(n-3)-a(n-4),对于n>5
k=3:n>9时[顺序8]
k=4:对于n>22,[订单20]
k=5:对于n>45,[订单42]
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例子
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n=3,k=4的一些解
..2..2..3..1. .0..2..2..2. .2..0..1..1. .0..3..3..1. .2..2..3..3
..3..2..3..3. .3..3..3..2. .2..0..1..0. .1..1..3..1. .3..3..1..2
..0..2..3..3. .3..2..2..2. .1..0..0..2. .3..3..3..1. .2.3.3.3.3
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交叉参考
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关键字
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作者
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状态
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经核准的
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