OFFSET
0,3
LINKS
Andrew Howroyd, Table of n, a(n) for n = 0..20
ProofWiki, Count of Binary Operations Without Identity
PROG
(PARI) a(n) = n^(n^2) - n^(((n-1)^2)+1) \\ Andrew Howroyd, Jan 23 2022
CROSSREFS
KEYWORD
nonn
AUTHOR
Matt Westwood, Dec 05 2010
EXTENSIONS
a(0)=1 prepended and terms a(7) and beyond from Andrew Howroyd, Jan 23 2022
STATUS
approved