74045domain: NAppears in sequencesNumbers k such that F(2*k + 1) is prime where F(m) is a Fibonacci number.at n=34A117517Numbers k such that L(2*k + 1) is prime, where L(m) is a Lucas number.at n=42A117522a(n) = n^3 - n - 1.at n=41A126420Numbers k such that (67*10^k + 17)/3 is prime.at n=22A282620