507696

Appears in sequences

• G.f.: (1 - 6*x - sqrt(36*x^2 - 16*x + 1))/(2*x).at n=6A082305
• a(n) = [x^n] 1/(1 - n*x - x/(1 - n*x - x/(1 - n*x - x/(1 - n*x - x/(1 - ...))))), a continued fraction.at n=6A302286