-3149

Appears in sequences

• G.f. satisfies: A(x) = 1/(1 - x) * Product_{k>0} A(x^(2*k)) / Product_{k>1} A(x^(2*k-1)).at n=51A321088
• G.f. satisfies A(x) = 1 + x/(1 + x^4)^2 * A(x/(1 + x^4)).at n=17A360901