257085
domain: N
Appears in sequences
- Numbers k that can be expressed as k = w+x = y*z with w*x = (y+z)^2 where w, x, y, and z are all positive integers.at n=35A057369
- For the numbers k that can be expressed as k = w + x = y*z with w*x = y^2 + z^2 where w, x, y, and z are all positive integers, this sequence gives the corresponding values of w*x.at n=11A057444
- a(n) is the sum of the squares of the area under Dyck paths of length 2*n.at n=7A367780