2305781domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers n such that ((1+I)^n+1)/(2+I) is a Gaussian prime.at n=42A124112Primes p such that (2^p - 2^((p+1)/2) + 1)/5 is prime.at n=25A125742Prime numbersat n=169906