245040

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 66.at n=14A031744
• a(n) = 225*n^2 + 15.at n=33A158557
• Least positive integer k such that (k-1)^2+(k*n)^2, k^2+(k*n-1)^2, (k+1)^2+(k*n)^2 and k^2+(k*n+1)^2 are all prime.at n=59A261382