1. Triangular repunit-there is but 1 Creator: Jaroma, John H. Format: bez média and svazek Type: model:article and TEXT Subject: repunit and triangular number Language: English Description: In this paper, we demonstrate that 1 is the only integer that is both triangular and a repunit. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public