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(来自的问候整数序列在线百科全书!)
A197069号 T(n,k)=nXk 0..4个数组的数量,每个元素x等于其水平和垂直邻域的数量,等于4,1,3,0,2,其中x=0,1,2,3,4 7
1, 2, 2, 3, 5, 3, 4, 11, 11, 4, 6, 34, 76, 34, 6, 9, 101, 408, 408, 101, 9, 13, 299, 2026, 3466, 2026, 299, 13, 19, 890, 10582, 33407, 33407, 10582, 890, 19, 28, 2643, 55882, 338295, 645970, 338295, 55882, 2643, 28, 41, 7855, 292564, 3302634, 11800402, 11800402 (列表;桌子;图表;参考;;历史;文本;内部格式)
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1、2
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每0紧挨着0 4,每1紧挨着1 1,每2紧挨着2 3,每3紧挨着3 0,每4紧挨着4 2
表格开始
..1.....2.......3..........4.............6...............9.................13
..2…..5……..11…………………………………34……………101…………299…………890
..3....11......76........408..........2026...........10582..............55882
..4....34.....408.......3466.........33407..........338295............3302634
..6...101....2026......33407........645970........11800402..........211057159
..9...299...10582.....338295......11800402.......387792259........12999535244
.13...890...55882....3302634.....211057159.....12999535244.......814152081238
.19..2643..292564...32228538....3846342121....440670363348.....50916124396857
.28..7855.1530151..317069301...70050139103..14820242617606...3169573665892646
.41.23340.8011519.3110367731.1273134867769.498301224553681.197847302932994974
链接
例子
n=6 k=4的一些解
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..1....0..0..0..0
..0..3..0..3..1.0...0..3..0...0...3...0...0...0...0...1...0...0...3...0
..1..1..3..0....1..0..0..0....1..0..1..1....0..3..3..0....1..0..1..1
..0..0..0..0....0..1..1..0....1..3..0..0....0..0..0..3....0..0..0..0
..0..0..0..0....1..0..0..3....0..0..0..0....0..0..0..0....0..0..0..1
..0..0..0..0....1..0..3..0....1..1..0..0....0..0..1..1....0..0..0..1
交叉参考
第1列是A000930号(n+1)
第2列为A196690型
关键词
非n,
作者
R.H.哈丁2011年10月9日
状态
经核准的

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