46656216001domain: NAppears in sequencesPrimes of form k^6 + k^3 + 1.at n=12A162601a(n) = 1 + sigma(n)^3 + sigma(n)^6.at n=23A259369Primes of the form 1 + sigma(n)^3 + sigma(n)^6.at n=4A259371Primes of the form 1 + sigma(n)^3 + sigma(n)^6.at n=7A259371Primes of the form 1 + sigma(n)^3 + sigma(n)^6.at n=11A259371