350159domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 16*k-1 such that 4*k-1, 8*k-1 and 32*k-1 are also primes.at n=13A101797Primes p such that (p-k)/(k+1) is also prime for k = 1, 2, 3.at n=19A247347Prime numbersat n=29988