OFFSET
17,1
LINKS
Alois P. Heinz, Table of n, a(n) for n = 17..100
FORMULA
a(n) = A197365(n,8).
MAPLE
b:= proc(u, o, t) option remember; series(`if`(u+o=0, 1,
add(b(u-j, o+j-1, 0)*`if`(j<=t, x, 1), j=1..u)+
add(b(u+j-1, o-j, j-1), j=1..o)), x, 9)
end:
a:= n-> coeff(b(n, 0$2), x, 8):
seq(a(n), n=17..35);
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Oct 28 2015
STATUS
approved