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Ma, D.G. (1985) An Elementary Proof of the Solutions to the Diophantine Equation 6y² = x(x +1)(2x +1). Journal of Sichuan University, 4, 107-116.

has been cited by the following article:

• TITLE: Pythagoreans Figurative Numbers: The Beginning of Number Theory and Summation of Series

  AUTHORS: Ravi P. Agarwal

  KEYWORDS: Figurative Numbers, Patterns and Properties, Relations, Sums of Finite and Infinite Series, History

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.9 No.8, August 31, 2021

  ABSTRACT: In this article we shall examine several different types of figurative numbers which have been studied extensively over the period of 2500 years, and currently scattered on hundreds of websites. We shall discuss their computation through simple recurrence relations, patterns and properties, and mutual relationships which have led to curious results in the field of elementary number theory. Further, for each type of figurative numbers we shall show that the addition of first finite numbers and infinite addition of their inverses often require new/strange techniques. We sincerely hope that besides experts, students and teachers of mathematics will also be benefited with this article.