A058156 - OEIS

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A058156

Number of labeled commutative monoids of order n with a fixed identity.

2

1, 2, 9, 94, 1486, 38890, 1430442, 77291510, 7826336608, 3904851153672

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..10.

Index entries for sequences related to monoids

FORMULA

a(n) = A058155(n)/n.

CROSSREFS

Row sums of A058160.

Sequence in context: A011804 A292467 A291622 * A011837 A106343 A086992

Adjacent sequences: A058153 A058154 A058155 * A058157 A058158 A058159

KEYWORD

nonn,more

AUTHOR

Christian G. Bower, Nov 14 2000

EXTENSIONS

a(8)-a(9) from Alex Meiburg, Oct 20 2021

a(10) from Andrew Howroyd, Feb 15 2022

STATUS

approved