-372775domain: ZAppears in sequencesFirst differences of A014292.at n=37A104862G.f.: real part of 1/(1 - i*x - i*x^2) where i=sqrt(-1).at n=36A201837Expansion of (1 - x + x^2)/(1 - 2*x + 3*x^2 + 2*x^3 + x^4).at n=18A375275