A111341 A035481(n-1) - A058162(n), number of Latin squares in dimension n with first row and first column 1,2,3 ..., n which are non-associative but commutative (element ij = element ji).

0, 0, 0, 50, 396, 6120

Offset

3,4

Comments

At order 6 there are commutative but non-associative Latin squares. - Artur Jasinski, Dec 08 2006

Links

Table of n, a(n) for n=3..8.

Crossrefs

Sequence in context: A334697 A280548 A293608 * A222693 A228743 A019561

Adjacent sequences: A111338 A111339 A111340 * A111342 A111343 A111344

Keyword

nonn

Author

Artur Jasinski, Nov 06 2005

Status

approved