134810domain: NAppears in sequences[ (3rd elementary symmetric function of 3,4,...,n+4)/(3+4+...+n+4) ].at n=38A024191Numbers 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=28A097282