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A027805
21*(n+1)*C(n+4,9).
+0
1
126, 1470, 9240, 41580, 150150, 462462, 1261260, 3123120, 7147140, 15315300, 31039008, 59961720, 111105540, 198470580, 343219800, 576609264, 943854450, 1509157650, 2362159800, 3626122500, 5468192730
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.
AT&T Labs Research
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