-4312

Appears in sequences

• a(n) = numerator of r(n): r(n) is such that the continued fraction (of rational terms) [r(1);r(2),...,r(n)] = n^2, for every positive integer n.at n=6A128560
• a(n) = Sum_{d|n} mu(d) * binomial(d+n/d-1, d).at n=54A338657