9324499610domain: NAppears in sequencesSeries reversion of x * (1 - x) / (1 + 9*x).at n=10A143749a(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=9A302286