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A112883号 |
| 一个斜Jacobsthal-Pascal矩阵。 |
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1
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1, 0, 1, 0, 1, 3, 0, 0, 2, 5, 0, 0, 1, 7, 11, 0, 0, 0, 3, 16, 21, 0, 0, 0, 1, 12, 41, 43, 0, 0, 0, 0, 4, 34, 94, 85, 0, 0, 0, 0, 1, 18, 99, 219, 171, 0, 0, 0, 0, 0, 5, 60, 261, 492, 341, 0, 0, 0, 0, 0, 1, 25, 195, 678, 1101, 683, 0, 0, 0, 0, 0, 0, 6, 95, 576, 1692, 2426, 1365, 0, 0, 0, 0, 0
(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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0,6
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评论
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链接
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配方奶粉
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G.f.:1/(1-yx(1-x)-2x^2*y*2);
数字三角形T(n,k)=和{j=0..2k-n}C(n-k+j,n-k)*C(j,2k-n-j)*2^(2k-n-j);
T(n,k)=A073370型(k,n-k);T(n,k)=T(n-1,k-1)+T(n-2,k-1)+2*T(n-2,k-2)。(完)
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例子
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行开始
1;
0, 1;
0, 1, 3;
0, 0, 2, 5;
0, 0, 1, 7, 11;
0, 0, 0, 3, 16, 21;
0, 0, 0, 1, 12, 41, 43;
0, 0, 0, 0, 4, 34, 94, 85;
0, 0, 0, 0, 1, 18, 99, 219, 171;
0, 0, 0, 0, 0, 5, 60, 261, 492, 341;
0, 0, 0, 0, 0, 1, 25, 195, 678, 1101, 683;
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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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