-150994944

Appears in sequences

• Expansion of (1 - 2*x -x^4)/(1 - 2*x)^2 in powers of x.at n=28A008936
• Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = 3/2.at n=27A279634