4884101domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 81*k^2 - 72*k + 17.at n=24A154276Primes representable as f(f(f(...f(p)...))) where p is a prime and f(x) = x^2 + 1.at n=5A266235Prime numbersat n=340918