120445

Appears in sequences

• Numbers k that are the hypotenuse of exactly 40 distinct integer-sided right triangles, i.e., k^2 can be written as a sum of two squares in 40 ways.at n=21A097282
• Number of 0..n arrays of length 5 with each element differing from at least one neighbor by 2 or more, starting with 0.at n=18A221516
• Numbers n that are the product of four distinct odd primes and x^2 + y^2 = n has integer solutions.at n=16A264499
• Number of (unlabeled) rooted trees with n leaf nodes and without unary nodes such that the maximum of the node outdegrees equals six.at n=10A292232
• Number of solutions to +- 1^3 +- 2^3 +- 3^3 +- ... +- n^3 = n^3.at n=33A368845