585398

Appears in sequences

• Expansion of e.g.f. exp(f(x) - 1) where f(x) = 1/(3 - 2*exp(x)).at n=6A354290
• For n >= 1, a(n) is the least k >= 0 such that k^2 + k + 1 is divisible by 2^n - 1 or a(n) = -1 if no such k exists.at n=24A372494