A076113 - OEIS

A076113

a(n) = n^(n*(n-1)/2).

1, 1, 2, 27, 4096, 9765625, 470184984576, 558545864083284007, 19342813113834066795298816, 22528399544939174411840147874772641, 1000000000000000000000000000000000000000000000, 1890591424712781041871514584574319778449301246603238034051

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OFFSET

0,3

COMMENTS

Labeled commutative idempotent groupoids.

Product of terms in n-th row of A076112.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..36

Index entries for sequences related to groupoids

PROG

(PARI) a(n) = n^(n*(n-1)/2); \\ Joerg Arndt, Nov 04 2013

CROSSREFS

Cf. A000169, A002489, A006125, A023037, A030257, A076112, A090588.

Sequence in context: A327128 A320669 A299116 * A182335 A362288 A056013

Adjacent sequences: A076110 A076111 A076112 * A076114 A076115 A076116

KEYWORD

easy,nonn

AUTHOR

Amarnath Murthy, Oct 09 2002

EXTENSIONS

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 20 2003

a(0)=1 prepended by Alois P. Heinz, Jun 30 2022

STATUS

approved