173069

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 64.at n=12A031742
• a(n) = 169*n^2 + 13.at n=32A158548
• Numbers k such that the factor method (A064097) for computing the k-th power has fewer multiplications than Knuth's power tree method (A114622).at n=9A256653