2049844domain: NAppears in sequencesa(n) = 4*a(n-1) - 4*a(n-2) + 3*a(n-3).at n=14A099215Coefficients in expansion of 1/(1 + 2*x - 3*x^3).at n=26A317499Coefficients in expansion of 1/(1 + 2*x - 3*x^3).at n=28A317499Coefficients in expansion of 1/(1 + 2*x - 3*x^3).at n=29A317499