OFFSET
0,3
LINKS
Robert Israel, Table of n, a(n) for n = 0..508
FORMULA
log(a(n)) ~ n*(log(n) - log(log(n)) + (log(log(n)) - 1)/log(n)). - Vaclav Kotesovec, Jan 10 2023
MAPLE
seq(add(binomial((n-k)*k, k), k=0..n), n=0..30); # Robert Israel, Nov 27 2017
MATHEMATICA
Table[Sum[Binomial[(n-k)*k, k], {k, 0, n}], {n, 0, 30}]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vaclav Kotesovec, Nov 27 2017
STATUS
approved