454659

Appears in sequences

• a(n) = (n^2/8+3*n/8-2)*2^n + 3.at n=13A226315
• G.f. A(x) satisfies: 1/(1 - x) = A(x)*A(x^2)^2*A(x^3)^3*A(x^4)^4* ... *A(x^k)^k* ...at n=48A307648