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A004148 Generalized Catalan numbers: a(n+1)=a(n)+ Sum a(k)a(n-1-k), k=1..n-1.
(Formerly M1141)
+0
95
1, 1, 1, 2, 4, 8, 17, 37, 82, 185, 423, 978, 2283, 5373, 12735, 30372, 72832, 175502, 424748, 1032004, 2516347, 6155441, 15101701, 37150472, 91618049, 226460893, 560954047, 1392251012, 3461824644, 8622571758, 21511212261, 53745962199 (list; graph; listen)
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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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