40203

Appears in sequences

• Expansion of Product_{m>=1} (1+m*q^m)^27.at n=4A022655
• The digits of pi(n)=A000720(n) are obtained by adding pairs of adjacent digits of n.at n=10A116070
• a(n) = 76*n^2 - 1.at n=22A158765
• a(n) = number of new distinct proper angles with vertex and legs on grid points in an n X n square grid that were not found in an (n-1) X (n-1) square grid.at n=43A252592