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A056616
Numerator of binomial(2n,n)/(2n+1).
+0
3
1, 2, 6, 20, 70, 252, 924, 1144, 12870, 48620, 184756, 705432, 2704156, 10400600, 40116600, 155117520, 200360130, 466721244, 9075135300, 11781754600, 137846528820, 538257874440, 140273264248, 8233430727600, 32247603683100
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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