References to A023814

Number of associative binary operations on an n-set; number of labeled semigroups.
1, 1, 8, 113, 3492, 183732, 17061118, 774305606


1 seqfan posts

Thu Dec 24 03:23:23 CET 2009    [seqfan] Re: structure & sequences defined by "exotic multiplication"

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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