Square triangular number: Difference between revisions

Revision as of 06:26, 27 May 2019

Revision as of 00:13, 9 September 2019

Line 59:

which is an instance of [[Pell's equation]]. This particular equation is solved by the [[Pell number]]s {{math|''P''_''k''}} as<ref>

{{cite book |last1=Hardy |first1=G. H. |authorlink1=G. H. Hardy |last2=Wright |first2=E. M. |authorlink2 = E. M. Wright |title=An Introduction to the Theory of Numbers |edition=5th |year=1979 |publisher=Oxford University Press |isbn=0-19-853171-0 |page=210 |quote= Theorem 244 |url-access=registration |url=https://archive.org/details/introductiontoth00hard }}

</ref>