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A001425
Number of commutative groupoids with n elements.
(Formerly M3714 N1518)
+0
15
1, 1, 4, 129, 43968, 254429900, 30468670170912, 91267244789189735259, 8048575431238519331999571800, 24051927835861852500932966021650993560, 2755731922430783367615449408031031255131879354330
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 6 19:58 EST 2009. Contains 170429 sequences.
AT&T Labs Research
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