97231domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 2*n^2 + 10*n + 3.at n=23A221902Primes p such that A001177(p) = (p-1)/7.at n=34A308800a(n) is the number of distinct radii of circles passing through at least three points in a square grid of n X n points.at n=28A357301Prime numbersat n=9355