OFFSET
0,3
EXAMPLE
G.f. = 1 + x + 2*x^2 + 4*x^3 + 9*x^4 + 22*x^5 + 59*x^6 + ... = 1/(1 - x - x^2/(1 - x - x^2/(1 - 2*x - 2*x^2/(1 - 4*x - 4*x^2/(1 - 9*x - 9*x^2/(1 - 22*x - 22*x^2/(1 - 59*x - 59*x^2/(1 - ...)))))))).
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Oct 17 2017
STATUS
approved