64044

Appears in sequences

• Expansion of Sum_{k>=1} prime(k)*x^prime(k)/(1 - x^prime(k)) * Product_{k>=1} 1/(1 - x^prime(k)).at n=53A276560
• Expansion of Product_{k>=1} ((1 + x^k)/(1 - x^k))^phi(k), where phi is the Euler totient function A000010.at n=18A318975
• Row sums of the triangle A391318, given by T(n,k) = T(n-1,k) + T(n-1,k-1) + T(n-2,k-1) + 1, with T(0,0) = T(n,-1) = T(n,n+1) = 0.at n=12A391272