-167761

Appears in sequences

• Fibonacci-type sequence based on subtraction: a(0) = 1, a(1) = 2 and a(n) = a(n-2) - a(n-1).at n=26A061084
• a(0)=-1, a(1)=-1, a(n)=-3*a(n-1)-a(n-2) for n>1.at n=13A098149
• Expansion of (1 - x)*(1 + x)^2*(1 + x^2)*(1 - x^2 + 2*x^3 + x^4) / ((1 - x^2 - x^4)*(1 + x^2 + 2*x^4 - x^6 + x^8)).at n=50A107363