4858559domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 32*k-1 such that 4*k-1, 8*k-1, 16*k-1 and 64*k-1 are also primes.at n=8A101998Primes p that are simultaneously of the forms 2*q+1, 4*r+3, 6*s+5 and 8*t+7 where q,r,s,t are primes.at n=20A328799Prime numbersat n=339247