255007domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest odd prime base q such that p^3 divides q^(p-1) - 1, where p = prime(n).at n=26A125637Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 0100-0100-1111 pattern in any orientation.at n=15A146576Prime numbersat n=22439