A362385 Number of nonisomorphic magmas with n elements satisfying the equation x(yz) = xy.

1, 1, 3, 14, 197, 6139, 603933, 199410617

Offset

0,3

Links

Table of n, a(n) for n=0..7.

Crossrefs

Cf. A001329 (magmas), A361720, A362382, A362384, A362386 (labeled case).

Sequence in context: A132490 A344745 A058388 * A327230 A288555 A288563

Adjacent sequences: A362382 A362383 A362384 * A362386 A362387 A362388

Keyword

nonn,more

Author

Andrew Howroyd, Apr 24 2023

Status

approved