169769domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 16*m^2 + 25, m=1,3,5,...at n=21A087856Let p = n-th prime == 7 mod 8; a(n) = sum of quadratic residues mod p that are > p/2.at n=40A282040a(1) = 0 and a(n+1) > a(n) is the smallest integer such that a(n+1)^2-a(n)^2 is triangular.at n=31A358416Prime numbersat n=15476