157165

Appears in sequences

• Expansion of (1-x^2)/(1-x-x^2+x^3+x^4).at n=46A101496
• Expansion of (1-2*x+2*x^2-x^3)/(1-3*x+5*x^2-3*x^3+x^4).at n=23A123879
• Number of 2 X 2 matrices having all elements in {-n,..,0,..,n} with determinant = permanent.at n=21A280059