149713domain: NPropertiesPrimalityPrimeyesAppears in sequencesEven Padovan numbers divided by 2.at n=22A135619a(n) = ceiling(A000931(n)/2).at n=47A173692Primes p such that 4*p is greater than the greatest prime factor of p^4 -1 and p^4 + 1.at n=34A218849Prime numbersat n=13823