552749domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that remain prime through 4 iterations of function f(x) = 8x + 7.at n=16A023322a(n) = T(2n,n), where T is the array defined in A026082.at n=9A026089a(n) = T(n,[ n/2 ]), where T is the array defined in A026082.at n=18A026094Prime numbersat n=45528