140891domain: NPropertiesPrimalityPrimeyesAppears in sequencesphi(s(n^3)) is a square, where s(n) is sigma(n)-n (A001065).at n=30A063798Primes of the form k^4 + 29*k^2 + 101.at n=19A272075Primes that can be generated by the concatenation in base 9, in ascending order, of two consecutive integers read in base 10.at n=41A287312Prime numbersat n=13089