103292domain: NAppears in sequencesNumber of Q-graphs rooted at a polygon.at n=8A007169Revert transform of (1 + 3x - x^3)/(1 + 4x + 4x^2 + 2x^3).at n=13A049146Index of first occurrence of 2n in A031883, or 0 if 2n never occurs in A031883 = first differences of lucky numbers A000959.at n=48A181558