588061domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form n^2*totient(n)+1 (or A053191(n) + 1).at n=28A076669Primes p = x^2 + y^2, not of the form z^2 + 1, such that 2^(x^2) == 2^(y^2) == 1 (mod p).at n=27A299103Prime numbersat n=48215