Matthew Skala. Counting distance permutations. J. Discrete Algorithms, 7(1):49-61, 2009. [doi]
@article{Skala09, title = {Counting distance permutations}, author = {Matthew Skala}, year = {2009}, doi = {10.1016/j.jda.2008.09.011}, url = {http://dx.doi.org/10.1016/j.jda.2008.09.011}, researchr = {https://researchr.org/publication/Skala09}, cites = {0}, citedby = {0}, journal = {J. Discrete Algorithms}, volume = {7}, number = {1}, pages = {49-61}, }