-4194305

Appears in sequences

• Partial sums of Berstel sequence (A007420).at n=34A178885
• Expansion of (1 + x - x^2)/((1 + x)*(1 + 2*x)).at n=23A248155
• Expansion of e.g.f. (1 + sin(x))/exp(x).at n=45A321632