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A126459
Column 1 of triangle
A126457
; a(n) = C( C(n+3,3) + 2, n).
+0
6
1, 6, 66, 1540, 66045, 4582116, 470155077, 66983637864, 12655529067060, 3062465626261470, 923729223066105456, 339813167168828020668, 149762733221010818774320, 77904783726874238769542600
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Maintained by
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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.
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