42673

Appears in sequences

• Expansion of e.g.f. x/(1 - x) + exp(x/(1 - x)).at n=7A052866
• Least k such that gcd(prime(k+1)-1, prime(k)-1) = 2n.at n=36A067605
• Numbers with all different digits such that each digit leaves the same nonzero remainder when each is divided into the number.at n=18A152852
• a(n+3) = -a(n+2) + 2a(n+1) + a(n) with a(0)=-1, a(1)=0, a(2)=-3.at n=19A214683
• a(n) = n! [x^n] W(-W(x))/(-W(x)), where W(x) is the Lambert W function.at n=7A340473
• Position of second appearance of 2n in the sequence of prime gaps A001223; if 2n does not appear at least twice, a(n) = -1.at n=36A356221