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A264207号 |
| 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+-(.,.)0,0,2或1,0。 |
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9
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4, 18, 9, 81, 96, 25, 288, 1024, 605, 64, 1024, 7328, 14641, 3600, 169, 3872, 52441, 223245, 202500, 21853, 441, 14641, 422505, 3404025, 6444000, 2825761, 131712, 1156, 54450, 3404025, 59040000, 205062400, 189087285, 39337984, 795906, 3025
(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
.....4........18...........81...........288...........1024............3872
…..9…..96…..1024…..7328…..52441…..422505
....25.......605........14641........223245........3404025........59040000
....64......3600.......202500.......6444000......205062400......7664479280
...169.....21853......2825761.....189087285....12652875225...1017895774965
...441....131712.....39337984....5520382336...774686906569.134248485475735
..1156....795906....547981281..161423594928.47551947307264
..3025...4804910...7632119044.4717876917930
..7921..29017649.106302733681
.20736.175219200
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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)+2*a(n-2)-a(n-3)
k=2:a(n)=3*a(n-1)+18*a(n-2)+5*a
k=3:a(n)=11*a(n-1)+44*a(n-2)-44*a
k=4:[订单30]
k=5:[订单51]
第n行的经验值:
n=1:a(n)=4*a(n-1)-4*a(n-2)+12*a
n=2:[订单92]
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例子
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n=3k=4的一些解
..0..1..4..3..2....0..1..4..8..2....0..6..7..1..2....0..1..4..3..2
..5.8.12.13..7.10..6.5.3.7.7.5.8.9.3.4.4.5.8.8.7.6.9
.15..6.14.11..9...15.13.12.11..9...10.16.14.11.12...15.16.14.11.12
.10.18.19.16.17...17.18.19.16.14...15.18.17.13.19...10.18.17.13.19
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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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