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A058134 Number of asymmetric commutative monoids (semigroups with identity) of order n. 1
1, 2, 4, 13, 49, 247, 1486 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

Index entries for sequences related to monoids

CROSSREFS

Sequence in context: A334444 A268951 A290722 * A246012 A069730 A072605

Adjacent sequences:  A058131 A058132 A058133 * A058135 A058136 A058137

KEYWORD

nonn,more

AUTHOR

Christian G. Bower, Nov 13 2000

STATUS

approved

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Last modified November 29 02:45 EST 2020. Contains 338756 sequences. (Running on oeis4.)