61339domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 0100-1110-0111-0010 pattern in any orientation.at n=16A146913Primes of the form 9n^2-8n+2.at n=16A154253Primes of the form 3*m^2 - 8.at n=24A201781Prime numbersat n=6171