-357913941

Appears in sequences

• Expansion of 1/((1-x)*(1+2*x)).at n=29A077925
• A generalized Jacobsthal sequence.at n=30A083943
• Expansion of x / ((1-x)*(4*x^2-2*x+1)).at n=29A157241
• G.f.: x^2*(3+3*x+x^2) / ( (2*x+1) * (1+x) * (1+x+x^2) * (x^2-x+1) ) .at n=29A167617