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A181974号 |
| 三角形T(n,k),按行读取,由(1,1,-1,0,0,0,0,0A084938号. |
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1, 1, 1, 2, 3, 1, 3, 4, 2, 1, 5, 7, 5, 4, 1, 8, 11, 10, 9, 3, 1, 13, 18, 20, 20, 9, 5, 1, 21, 29, 38, 40, 22, 15, 4, 1, 34, 47, 71, 78, 51, 40, 14, 6, 1, 55, 76, 130, 147, 111, 95, 40, 22, 5, 1, 89, 123, 235, 272, 233, 213, 105, 68, 20, 7, 1
(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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0,4
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链接
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配方奶粉
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通用公式:(1+y*x+2*y*x^2)/(1-x-x^2-y^2*x^ 2)。
T(n,k)=T(n-1,k)+T(n-2,k)+T。
T(n,0)=斐波那契(n+1)。
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例子
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三角形开始:
1
1, 1
2, 3, 1
3, 4, 2, 1
5, 7, 5, 4, 1
8、11、10、9、3、1
13, 18, 20, 20, 9, 5, 1
21, 29, 38, 40, 22, 15, 4, 1
34, 47, 71, 78, 51, 40, 14, 6, 1
55, 76, 130, 147, 111, 95, 40, 22, 5, 1
89, 123, 235, 272, 233, 213, 105, 68, 20, 7, 1
144, 199, 420, 495, 474, 455, 256, 185, 65, 30, 6, 1
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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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