OFFSET
0,5
COMMENTS
What does this sequence count?
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..1000
PROG
(PARI)
N=66; R=O('x^N); x='x+R;
F = 1 + x;
for (k=1, N+1, F = 1 + x / (1 - x * subst(F, 'x, 'x^2) ) + R; );
Vec(F)
CROSSREFS
KEYWORD
nonn
AUTHOR
Joerg Arndt, Oct 19 2012
STATUS
approved