In this paper we discover an efficient method for answering two related questions involving the Stern-Brocot tree: What is thej th term in then th level of the tree? and What is the exact position of the fractionfrac(r, s) in the tree? © 2009 Elsevier Ltd. All rights reserved.
Bates, B., Bunder, M., & Tognetti, K. (2010). Locating terms in the Stern-Brocot tree. European Journal of Combinatorics, 31(3), 1020–1033. https://doi.org/10.1016/j.ejc.2007.10.005