@article{JIS_2010__13_5_a2,
     author = {Alkauskas,  Giedrius},
     title = {Congruence properties of the function that counts compositions into powers of 2},
     journal = {Journal of integer sequences},
     year = {2010},
     volume = {13},
     number = {5},
     zbl = {1238.11094},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2010__13_5_a2/}
}