89479864domain: NAppears in sequencesNumber of 3-asymmetric rhythm cycles: binary necklaces of length 3n subject to the restriction that for any k if the k-th bead is of color 1 then the (k+n)-th and (k+2n)-th beads (modulo 3n) are of color 0.at n=15A115115Number of cycles for vectors of length n under the Ducci map.at n=47A135547