163691domain: NAppears in sequencesExpansion of 1/((1-3x)(1-5x)(1-11x)(1-12x)).at n=4A028073Expansion of (1/x) * Series_Reversion( x * (1 - x)^2 / (1 + x^3 / (1 - x)^2) ).at n=8A389549