OFFSET
4,9
LINKS
Alois P. Heinz, Table of n, a(n) for n = 4..400
MAPLE
b:= proc(n, i, p, k) option remember; `if`(n=0, p!, `if`(i<1, 0,
add(b(n-i*j, i-1, p+j, k)/j!, j=[0, $max(1, k)..n/i])))
end:
a:= n-> b(n$2, 0, 4) -b(n$2, 0, 5):
seq(a(n), n=4..50);
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jun 21 2014
STATUS
approved