2331128

Appears in sequences

• Expansion of g.f. 1/(1-4*x*C) where C = (1/2-1/2*(1-4*x)^(1/2))/x = g.f. for Catalan numbers A000108.at n=9A076035
• Riordan array (1/(1-4*x*c(x)),xc(x)), c(x) the g.f. of A000108.at n=45A117380