@article{10_37236_2006,
     author = {Fernando Chamizo and Dulcinea Raboso and Seraf{\'\i}n Ruiz-Cabello},
     title = {On {Rowland's} sequence},
     journal = {The electronic journal of combinatorics},
     year = {2011},
     volume = {18},
     number = {2},
     doi = {10.37236/2006},
     zbl = {1223.11008},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2006/}
}