OFFSET
0,3
LINKS
Petr Gajdoš and Martin Kuřil, Ordered semigroups of size at most 7 and linearly ordered semigroups of size at most 10, Semigroup Forum, 89 (2014), 639-663.
J. Slaney, FINDER: Finite Domain Enumerator
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Michael Somos, Jun 15 2003
EXTENSIONS
a(9)-a(10) from Gajdoš and Kuřil added by Andrey Zabolotskiy, Mar 24 2021
STATUS
approved