201066

Appears in sequences

• Expansion of (1-x)/(1+2*x+x^2-x^3).at n=31A078064
• Area of the unique primitive Pythagorean triple (a,b,c) such that (a-b+c)/2 is A000032(n) and such that its long leg and its hypotenuse are consecutive natural numbers.at n=8A382410