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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).
1
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
CROSSREFS
Sequence in context: A334697 A280548 A293608 * A222693 A228743 A019561
KEYWORD
nonn
AUTHOR
Artur Jasinski, Nov 06 2005
STATUS
approved