-14589

Appears in sequences

• Riordan array (1/(1+xc(-2x)), xc(-2x)/(1+xc(-2x))), c(x) the g.f. of A000108.at n=28A114189
• Expansion of 1/(1+x*c(-2*x)), c(x) the g.f. of A000108.at n=7A114191
• Three-dimensional Welschinger invariants.at n=3A171118