Michael D. Hirschhorn, James A. Sellers. Partitions into three triangular numbers. Australasian J. Combinatorics, 30:307-318, 2004. [doi]
@article{HirschhornS04a, title = {Partitions into three triangular numbers}, author = {Michael D. Hirschhorn and James A. Sellers}, year = {2004}, url = {http://ajc.maths.uq.edu.au/pdf/30/ajc_v30_p307.pdf}, researchr = {https://researchr.org/publication/HirschhornS04a}, cites = {0}, citedby = {0}, journal = {Australasian J. Combinatorics}, volume = {30}, pages = {307-318}, }