Murray Elder, Andrew Rechnitzer, Esaias J. Janse van Rensburg, Thomas Wong. The cogrowth series for BS(N, N) is D-finite. IJAC, 24(2):171-188, 2014. [doi]
@article{ElderRRW14,
title = {The cogrowth series for BS(N, N) is D-finite},
author = {Murray Elder and Andrew Rechnitzer and Esaias J. Janse van Rensburg and Thomas Wong},
year = {2014},
doi = {10.1142/S0218196714500106},
url = {http://dx.doi.org/10.1142/S0218196714500106},
researchr = {https://researchr.org/publication/ElderRRW14},
cites = {0},
citedby = {0},
journal = {IJAC},
volume = {24},
number = {2},
pages = {171-188},
}