Revision history of "T(n+1)^2-T(n)^2=(n+1)^3"

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  • (cur | prev) 01:31, 30 May 2017Tom (talk | contribs). . (372 bytes) (+372). . (Created page with "==Theorem== The following formula holds for $n=1,2,3,\ldots$: $$T(n+1)^2-T(n)^2=(n+1)^3,$$ where $T(n)$ denotes the $n$th triangular number. ==Proof==...")