A283840 Number of ternary maps f : S X S X S -> S on a set S of n elements which can be represented as a superposition of binary maps * : S X S -> S (Version 1).

1, 14, 19292

Offset

1,2

Comments

That is, the number of ternary maps represented in the form f(x, y, z) = (x ∗ y) ∗ z.

Links

Table of n, a(n) for n=1..3.

Pasha Zusmanovich, Lie algebras and around: selected questions, arXiv:1608.05863 [math.RA], 2016.

Crossrefs

Cf. A283841.

Sequence in context: A333954 A104376 A053870 * A079176 A344668 A013754

Adjacent sequences: A283837 A283838 A283839 * A283841 A283842 A283843

Keyword

nonn,bref,more

Author

N. J. A. Sloane, Mar 25 2017

Status

approved