70437

Appears in sequences

• Expansion of g.f. -(1+x^2+x^4)/((x^3+x^2+x-1)*(x-1)^2).at n=16A104187
• a(n) is the number of pairs of primes (p,q), p < q, such that (p + q)/2 = n!.at n=7A350782