40630

Appears in sequences

• One eighty-fourth the area of primitive Pythagorean triangles with (increasing) square hypotenuses (precisely those of A008846).at n=25A072289
• Number of Sidon subsets of {1,...,n} of size 4.at n=34A241688
• The number of partitions of n which represent Chomp positions with Sprague-Grundy value 10.at n=63A284784
• Number of Motzkin excursions of length n with an even number of humps and without peaks.at n=16A325918
• a(n) = Sum_{k=1..n} phi(gcd(k, n))^(n/gcd(k, n)).at n=43A342541
• Number of polycubes with 8*n cells, full symmetry, and the rotation point of the symmetries at the common corner of 8 cells (that may or may not be part of the polycube).at n=34A377335