

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




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



