OFFSET
0,3
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 0..135
FORMULA
a(n) ~ exp(2*n + 9/2) * n^(n-3) / (2*Pi * 6^(n-1)).
MAPLE
T:=proc(n, k) option remember; `if`(n=0 or k=1, 1, T(n, k-1) + `if`(n<k, 0, T(n-k, k))) end proc: seq(T(n*(n+1)*(n+2)/6, n), n=0..20);
CROSSREFS
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, May 25 2015
STATUS
approved