486098

Appears in sequences

• Values of x for which 9*y^2 = x^2 + 2*x*y - 2*x has integer solutions with positive y.at n=5A083000
• a(n) = numerator of r(n): r(1)=1, r(n+1) = [b(1,n);b(2,n),...,b(n,n)], a continued fraction of rational terms, where {b(k,n)} is the permutation of the first n terms of {r(k)} such that r(n+1) is minimized.at n=6A128774