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| A197746号 |
| nX4 0..4数组的数量，其中每个元素x等于其水平和垂直邻接数等于3,3,0,1,0，x=0,1,2,3,4 |
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1
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3, 31, 212, 1317, 9499, 64832, 462515, 3316363, 23465652, 167021811, 1187571067, 8438773594, 60016633869, 426656318067, 3033239021542, 21565974491771, 153321389406967, 1090053687664854, 7749841908849879, 55097853719155295
(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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1,1
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评论
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每个0紧挨着0 3，每个1紧挨着1 3，每个2紧挨着2 0，每个3紧挨着3 1，每个4紧挨着4 0
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链接
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配方奶粉
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经验公式：a（n）=3*a（n-1）+9*a（n-2）+98*a（n-16）+9561411*a（n-17）+22407300*a-14358629*a（n-23）-122957082*a*a（n-36）+3565967257*a（n-37）-1155118391*a（-n38）-1916189238*a（n-39）-3291764167*a（a-40）+20252307776*a（n-41）+20076727482*a n-53）-146564753（n-54）+475682495（n-55）+32453283（n-56）-15291855（n-57）-4417594*a（n-58）+352151*a（n-59）-6601819*a
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例子
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某些解包含n=5的所有值0到4
..0..0..0..0....1..3..1..0....0..0..0..0....2..0..0..0....2..0..0..1
..2...0...4...0...0...1...2...0...0...4...0...0...0...0...0...0...0...0...0...1..3
..1..0..0..1....2..0..0..0....1..0..0..0....0..0..0..1....2..0..0..1
..3..1..1..3....2..0..4..0....3..1..2..0....0..2..1..3....2..0..4..0
..1..0..0..1....0..0..0..0....1..0..2..0....0..2..0..1....0..0..0..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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