194997domain: NAppears in sequencesNumber of unlabeled 11-gonal 2-trees with n 11-gons.at n=7A094655Numbers k such that 2k - 1 divides 2^k + 1.at n=1A247132The largest denominator that can be made from n repeated applications of the maps f(x) = x + 1 or g(x) = -1/x, starting from 0.at n=46A350391