1123879domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that the polynomial k^4 + k^3 + k^2 + k + p yields only primes for k = 0...6.at n=25A247966Septic hyperartiads: septic artiads (A270800) for which 7 is a 7th power residue.at n=9A270801Prime numbersat n=87440