303217domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = a(n-2) - (n-3)*a(n-3), with a(0)=0, a(1)=1, a(2)=2.at n=20A122044Numbers p that are the first of three consecutive primes p,q,r such that p*q*r-(p+q+r) and p*q*r+(p+q+r) are both in A001043.at n=22A346653Prime numbersat n=26255