63094

Appears in sequences

• Numbers n such that S(n) = 0, where S(n) = (S(n-1) + A000040(n+1))*(-1)^n; S(0)=0, n >= 1.at n=33A131693
• a(n) = 729*n^2 - 1016*n + 354.at n=9A157665
• Triangle read by rows: T(n,k) is the number of unoriented series-parallel networks with n colored elements using exactly k colors.at n=18A339282