@article{JIS_2005__8_5_a5,
     author = {Kube,  Nate and Ruskey,  Frank},
     title = {Sequences that satisfy \(a(n-a(n))=0\)},
     journal = {Journal of integer sequences},
     year = {2005},
     volume = {8},
     number = {5},
     zbl = {1106.11008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2005__8_5_a5/}
}