1967565600domain: NAppears in sequencesNumber of permutations in the symmetric group S_n that have odd number of transpositions in their cycle decomposition.at n=13A088506Denominators of poly-Cauchy numbers of the second kind hat c_n^(2).at n=12A219247Denominators of poly-Cauchy numbers c_n^(2).at n=12A224094