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A011851
[ C(n,5)/5 ].
+0
2
0, 0, 0, 0, 0, 0, 1, 4, 11, 25, 50, 92, 158, 257, 400, 600, 873, 1237, 1713, 2325, 3100, 4069, 5266, 6729, 8500, 10626, 13156, 16146, 19656, 23751, 28501, 33982, 40275, 47467, 55651, 64926, 75398, 87179
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.
AT&T Labs Research
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