-89478484

Appears in sequences

• a(n) = -5*a(n-1) - 4*a(n-2), a(0)=1, a(1)=0.at n=14A084240
• a(n) = -a(n-1) + 2*a(n-2), a(0)=1, a(1)=2.at n=28A084247
• Expansion of (1+x-4*x^2) / ((1+x)*(1-4*x^2)).at n=28A087213
• a(n) = (1/3)*(1 - (-2)^n + 3*(-1)^n ) = (-1)^(n+1)*A167030(n).at n=28A167193