References to A002802

(2*n+3)!/(6*n!*(n+1)!).
1, 10, 70, 420, 2310, 12012, 60060, 291720, 1385670, 6466460, 29745716

1 seqfan posts

Sun Jun 28 21:08:22 CEST 2009    [seqfan] Catalan-related sequences with floretions
Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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