On Triangular and Trapezoidal Numbers

Pearl Joyce Berana, Jomari Montalbo, Daryl Magpantay
Batangas State University, Main Campus I, Batangas City, Philippines
beranapearljoyce@yahoo.com, jomari.montalbo@yahoo.com.ph,
magpantaydaryl@gmail.com
Date Received: September 30, 2015; Date Revised: November 3, 2015

Diamond number Odd and Even Triangular numbers Parity of triangular numbers Trapezoidal number Triangular numbers


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