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A008956 Triangle of central factorial numbers 4^k t(2n+1,2n+1-2k). +0
18
1, 1, 1, 1, 10, 9, 1, 35, 259, 225, 1, 84, 1974, 12916, 11025, 1, 165, 8778, 172810, 1057221, 893025, 1, 286, 28743, 1234948, 21967231, 128816766, 108056025, 1, 455, 77077, 6092515, 230673443, 3841278805, 21878089479, 18261468225, 1, 680 (list; table; graph; listen)
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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