40739domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p of the form a^2-b^2 and p*a-b is also prime (with b=prime and a=b+1).at n=24A173875Number of ordered triples (w,x,y) with all terms in {1,...,n} and w^2<x^2+y^2.at n=38A211635Prime numbersat n=4265