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A123160 Triangle read by rows: T(0,0)=1; T(n,k)=n!(n+k-1)!/[(n-k)!(n-1)!(k!)^2] for 0 <= k <= n. +0
3
1, 1, 1, 1, 4, 3, 1, 9, 18, 10, 1, 16, 60, 80, 35, 1, 25, 150, 350, 350, 126, 1, 36, 315, 1120, 1890, 1512, 462, 1, 49, 588, 2940, 7350, 9702, 6468, 1716, 1, 64, 1008, 6720, 23100, 44352, 48048, 27456, 6435, 1, 81, 1620, 13860, 62370, 162162, 252252, 231660 (list; table; graph; listen)
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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