Pillai, S. Sivasankaranarayana On the inequality “\(0<a^x-b^y\le n\)”. (English) Zbl 0001.26802 J. Indian Math. Soc. 19, 1-11 (1931). Reviewer: J. F. Koksma (Amsterdam) Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 ReviewsCited in 5 Documents MSC: 11D75 Diophantine inequalities Keywords:Diophantine inequality; Siegel’s approximation theorem; algebraic irrationals PDFBibTeX XMLCite \textit{S. S. Pillai}, J. Indian Math. Soc. 19, 1--11 (1931; Zbl 0001.26802) Online Encyclopedia of Integer Sequences: Number of positive integer solutions to the equation |2^x - 3^y| = n.