31748

Appears in sequences

• Numbers n such that Catalan(n)+1 is prime.at n=39A053429
• Growth series for Heisenberg group.at n=27A063810
• G.f. satisfies: A(x) = (1+x)/(1-x) * A(x^2)*A(x^3)*A(x^4)*...*A(x^n)*... .at n=20A318767