OFFSET
0,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..73
FORMULA
a(n) = (7n)! * [x^(7n)] exp(x^7/7).
MAPLE
a:= proc(n) option remember; `if`(n=0, 1,
mul(7*n-i, i=1..6)*a(n-1))
end:
seq(a(n), n=0..10);
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Aug 18 2015
STATUS
approved