700596

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 62.at n=26A031740
• Number of different n X n symmetric matrices with nonnegative entries summing to 4. Also number of symmetric oriented graphs with 4 arcs on n points.at n=36A139594
• a(n) = 729*n^2 + 27.at n=31A158645