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A009766 Catalan's triangle T(n,k) (read by rows): each term is the sum of the entries above and to the left, i.e. T(n,k)=sum(T(n-1,j),j=0..k). +0
71
1, 1, 1, 1, 2, 2, 1, 3, 5, 5, 1, 4, 9, 14, 14, 1, 5, 14, 28, 42, 42, 1, 6, 20, 48, 90, 132, 132, 1, 7, 27, 75, 165, 297, 429, 429, 1, 8, 35, 110, 275, 572, 1001, 1430, 1430, 1, 9, 44, 154, 429, 1001, 2002, 3432, 4862, 4862, 1, 10, 54, 208, 637, 1638, 3640, 7072, 11934 (list; table; graph; listen)
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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