267959domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmaller of twin primes whose middle term is a multiple of A002110(5)=2310.at n=20A060231Numbers m such that m-2, m-1, m+1, m+2 cannot all be represented in the form x*y + x + y for values x, y with x >= y > 1.at n=37A256386Prime numbersat n=23488