68130domain: NAppears in sequencesNumbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 58.at n=8A031736Smallest number whose sixth power has n digits.at n=29A130080a(n) = 81*n^2 + 9.at n=28A157888a(n) = 972*n^2 - 1224*n + 414 with n > 0.at n=8A304166