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1, 1, 2, 3, 4, 7, 10, 13, 16, 26, 36, 46, 55, 65, 101, 137, 173, 203, 233, 269, 406, 543, 680, 788, 888, 996, 1133, 1676, 2219, 2762, 3173, 3533, 3893, 4304, 4847, 7066, 9285, 11504, 13133, 14503, 15799, 17169, 18798, 21017, 30302, 39587, 48872, 55529
(列表;桌子;图表;参考文献;听;历史;文本;内部格式)
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抵消
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0,3
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评论
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仅列出0≤k≤n的T(n,k),因为如果k>n,T(n、k)=T(n;n)。
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链接
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配方奶粉
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G.f.:和{n>=0,k>=0}T(n,k)*y^k*x^n=A(x)*A(xy)/(1-y)其中A(xA002212号.
T(0,k)=T(1,0)=1。T(n+1,0)=T(n,0)+T(n,n),n>0。T(n,k)=T(n、k-1)+T(k、0)T(n-k,0),k>0。T(n,k)=T(n,n),k>n。
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例子
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T(5.3)=T(5.2)+T(3.0)T(5-2,0)=203+10*3=233。
{1}, {1,2}, {3,4,7}, {10,13,16,26}, {36,46,55,65,101},...
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黄体脂酮素
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(PARI)T(n,k)=如果(k<0 | | n<0,0,如果(n==0,1,如果(k==0,T(n-1,0)+如果(n>1,T(n-1,n-1)),T
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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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