65299domain: NAppears in sequencesFibonacci sequence beginning 1, 15.at n=19A022105Least k such that 10^n + k is a Sophie Germain prime and the lesser of a twin prime pair.at n=29A118580Numbers n such that n!8-2 is prime.at n=63A204664G.f. A(x) satisfies: A(x) = 1 + x^2 + x^3 * A(x/(1 - x)) / (1 - x).at n=15A346051