We find all the solutions of the Diophantine equation in positive integers x,y,α,β,n ≥ 3 with x and y coprime.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-cm116-1-7, author = {Florian Luca and Alain Togb\'e}, title = {On the Diophantine equation $x2 + 2^{a}13^{b} = yn$ }, journal = {Colloquium Mathematicae}, volume = {116}, year = {2009}, pages = {139-146}, zbl = {1221.11090}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm116-1-7} }
Florian Luca; Alain Togbé. On the Diophantine equation $x² + 2^{α}13^{β} = yⁿ$ . Colloquium Mathematicae, Tome 116 (2009) pp. 139-146. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm116-1-7/