OFFSET
0,14
COMMENTS
What does this sequence count?
LINKS
Joerg Arndt, Table of n, a(n) for n = 0..1000
FORMULA
G.f.: 1/(1 - x^3/(1 - x^7/(1 - x^11/(1 - x^15/(1 - x^19/(1 - x^23/( ... ))))))).
PROG
(PARI) N=66; x='x+O('x^N);
F(x, y, d=0)=if (d>N, 1, 1 / (1-x*y * F(x, x^2*y, d+1) ) );
Vec( F(x^2, x) )
CROSSREFS
KEYWORD
nonn
AUTHOR
Joerg Arndt, Mar 29 2014
STATUS
approved