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A140767号 |
| 按行读取的三角形,X^n*[1,1,0,0,0,…],其中X=主对角线和次对角线中有(1,1,1,…),次对角线中有(1,0,1,0,1,…)的三对角矩阵。 |
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1, 1, 1, 2, 2, 1, 3, 5, 2, 2, 1, 4, 9, 7, 9, 2, 2, 1, 5, 14, 16, 25, 11, 13, 2, 2, 1, 6, 20, 30, 55, 36, 49, 15, 17, 2, 2, 1, 7, 27, 50, 105, 91, 140, 64, 81, 19, 21, 2, 2, 1, 8, 35, 77, 182, 196, 336, 204, 285, 100, 121, 23, 25, 2, 2
(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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0,4
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评论
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行总和=奇数斐波那契数列(2,5,13,34,89,…)。
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链接
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例子
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三角形的前几行是:
1, 1;
1, 2, 2;
1, 3, 5, 2, 2;
1, 4, 9, 7, 9, 2, 2;
1, 5, 14, 16, 25, 11, 13, 2, 2;
1, 6, 20, 30, 55, 36, 49, 15, 17, 2, 2;
1, 7, 27, 50, 105, 91, 140, 64, 81, 19, 21, 2, 2;
...
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交叉参考
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关键字
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非n,标签
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作者
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状态
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经核准的
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