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Search: id:A051290
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| A051290 |
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Triangular array T read by rows: T(n,k)=P(2n+3,n,2k+3), where P(n,k,c)=number of vectors (x(1),x(2,),...,x(n)) of k 1's and n-k 0's such that x(i)=x(n+1-i) for exactly c values of i. |
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| 1, 4, 1, 12, 6, 3, 32, 24, 24, 4, 80, 80, 120, 40, 10, 192, 240, 480, 240, 120, 15, 448, 672, 1680, 1120, 840, 210, 35, 1024, 1792, 5376, 4480, 4480, 1680, 560, 56, 2304, 4608, 16128, 16128, 20160, 10080, 5040, 1008, 126
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