658873domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form (2*k^3 + 3*k^2 + k - 12)/6.at n=26A178608Primes p such that (3*p+q)/2, (p+3*q)/2, (3*q+r)/2 and (q+3*r)/2 are all prime, where q and r are the next primes after p.at n=13A332848Prime numbersat n=53479