52379047267domain: NAppears in sequencesPrimes of the form n^6 + n^5 + n^4 + n^3 + n^2 + n + 1.at n=15A088550Primes of the form p^6 + p^5 + p^4 + p^3 + p^2 + p + 1 when p is prime.at n=6A194257