-7085

Appears in sequences

• Moebius inversion of a sequence related to powers of 2.at n=18A178738
• Triangle read by rows: T(n,k) is the coefficient A_k in the transformation of 1 + x + x^2 + ... + x^n to the polynomial A_k*(x+3k)^k for 0 <= k <= n.at n=22A248977
• a(n) = ((-4)^((p-1)/4) - 1)/p, where p is the n-th prime congruent to 1 mod 4.at n=4A318898
• E.g.f. satisfies A(x) = exp( x * exp(x^2) / A(x) ).at n=6A362673