-22015

Appears in sequences

• Expansion of (1-x^2)/(1-x-x^2+x^3+x^4).at n=38A101496
• Expansion of (1-2*x+2*x^2-x^3)/(1-3*x+5*x^2-3*x^3+x^4).at n=19A123879
• G.f.: 1/(1-2*x+2*x^2-x^3+x^4).at n=36A199802
• Trisection 0 of A199802.at n=12A199927