817561domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=2, r=2, I={0,1}.at n=45A080013Smallest prime that is the sum of 2n+1 squares of consecutive odd primes, or 0 if no such prime exists.at n=23A380319Prime numbersat n=65237