@article{JIS_2015__18_6_a5,
     author = {Holdum, Sebastian Tim and Klausen, Frederik Ravn and Rasmussen, Peter Michael Reichstein},
     title = {On a conjecture on the representation of positive integers as the sum of three terms of the sequence $\lfloor \frac{n^2}{a} \rfloor$},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {18},
     number = {6},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2015__18_6_a5/}
}