@article{JIS_2006__9_2_a7,
     author = {Kitaev, Sergey},
     title = {Independent sets on path-schemes},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2006__9_2_a7/}
}