2002321

Appears in sequences

• a(n) = (Sum_{k=1..A047380(n)} k^6) / (Sum_{k=1..A047380(n)} k^2).at n=26A133180
• a(n) = 163 + 1053*n + 2520*n^2 + 2646*n^3 + 1029*n^4.at n=6A134160
• The number of edges formed on a triangle with leg lengths equal to the Pythagorean triples by the straight line segments mutually connecting all vertices and all points that divide the sides into unit length parts.at n=13A333137