View source for Paper:V.E. Hoggatt, Jr/Triangular numbers

{{Book|Triangular numbers|1974|The Fibonacci Quarterly||V.E. Hoggatt, Jr|author2=Marjorie Bicknell}}

===Online copies===
[http://www.fq.math.ca/Issues/12-3.pdf hosted by the Fibonacci Quarterly]<br />

===Contents===
[[Triangular numbers|$(1.1)$]]<br />
[[T(n)=n(n+1)/2|$(1.1)$]]<br />
[[T(n+1)=T(n)+n+1|$(1.2)$]]<br />
[[N^2=T(n)+T(n-1)|$(1.3)$]]<br />
[[T(n)^2=T(T(n))+T(T(n)-1)|$(1.4)$]]<br />
[[T(n+1)^2-T(n)^2=(n+1)^3|$(1.5)$]]<br />


[[Category:Paper]]