116312domain: NAppears in sequencesNumbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 22.at n=31A031700a(n) = 961*n^2 + 31.at n=11A158675a(n) = 121*n^2 + n.at n=30A173267For 1<=x<=n, 1<=y<=n, write gcd(x,y) = u*x+v*y with u,v minimal; a(n) = sum of the values of u^2+v^2.at n=41A345434