46693domain: NAppears in sequencesNumbers k such that the continued fraction for sqrt(k) has period 97.at n=32A020436Sums of 3 distinct powers of 6.at n=21A038479Smallest k>n such that n^3+1 divides k*n^2+1.at n=36A071568a(n) = Sum_{k=1..n} gcd(k,n)^gcd(k,n).at n=5A342423