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PORTUGALIAEMATHEMATICA Vol. 55, No. 4, pp. 381-383 (1998)  | 
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One Property of Triangular NumbersM.N. DesphandeInstitute of Science,Nagpur - 440001 (M.S.) - INDIA Full text of the article: 
 Electronic version published on: 29 Mar 2001. This page was last modified: 27 Nov 2007. 
© 1998 Sociedade Portuguesa de Matemática
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