39737

Appears in sequences

• Number of squares of size n^2 in all tilings of an (n+2) X (n+2) square using integer-sided square tiles.at n=9A226892
• Composite numbers k such that sigma(k + sigma(k)) = 2*sigma(k).at n=34A246858
• Expansion of 1/((1+2*x)*(1-3*x)*(1-4*x)).at n=7A249995