2228225

Appears in sequences

• Cullen numbers: a(n) = n*2^n + 1.at n=17A002064
• p*2^p + 1 where p is prime.at n=6A098773
• Central terms of the triangle in A119258.at n=8A119259
• Square array read by antidiagonals: T(n,k) = Sum_{j = 0..n*k} binomial(n+j-1,j)*2^j; n,k >= 0.at n=46A333560
• Numbers k such that the k-th standard ordered rooted tree is binary.at n=8A358375
• Expansion of Sum_{k>0} (x * (1 + (2 * x)^k))^k.at n=33A360752