48334domain: NAppears in sequencesNumbers n such that n | 11^n + 9^n + 7^n + 5^n + 3^n + 1.at n=32A057832Numbers k such that the sum of prime factors of k (counted with multiplicity) equals four times the largest prime divisor of k.at n=33A212862Numbers k such that (73*10^k + 413)/9 is prime.at n=21A290431