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A103371 Number triangle T(n,k)=C(n,n-k)C(n+1,n-k). +0
9
1, 2, 1, 3, 6, 1, 4, 18, 12, 1, 5, 40, 60, 20, 1, 6, 75, 200, 150, 30, 1, 7, 126, 525, 700, 315, 42, 1, 8, 196, 1176, 2450, 1960, 588, 56, 1, 9, 288, 2352, 7056, 8820, 4704, 1008, 72, 1, 10, 405, 4320, 17640, 31752, 26460, 10080, 1620, 90, 1, 11, 550, 7425, 39600, 97020 (list; table; graph; listen)
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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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