-10922

Appears in sequences

• Expansion of (1-x)/(1+x+2*x^2+2*x^3).at n=30A078052
• A generalized Jacobsthal sequence.at n=14A083944
• Expansion of (1+x^2)/((1-x+x^2)*(1+2*x^2)).at n=30A102517
• a(n)= -3a(n-1) -3a(n-2)-2a(n-3), a(0)=1, a(1)=-2, a(2)=2.at n=15A131562
• First differences of A133730.at n=31A141416
• G.f.: (1+x)/(1+x-2*x^2).at n=15A151575