-710647

Appears in sequences

• Expansion of (1-2*x)/(1+x-x^2).at n=27A075193
• Sum of Lucas numbers and inverted Lucas numbers: a(n) = A000032(n)*A075193(n).at n=29A075270
• 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=56A107363