61035

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 19.at n=12A031697
• a(n) = 361*n^2 + 2*n.at n=12A158309
• Number of n X n 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=12A280434
• Numbers k such that A353802(k) / sigma(sigma(k)) is an integer > 1, where A353802(n) = Product_{p^e||n} sigma(sigma(p^e)).at n=45A353807