Editorial for Suma n-tog reda neparnih

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Suma prvih \(n\) neparnih brojeva je \(n^2\).
U prvih \(n\) redova ima \(\frac{n(n+1)}{2}\) brojeva.
Suma prvih \(n\) redova je \(S(n) = \left(\frac{n(n+1)}{2}\right)^2\).
Suma \(n\) tog reda je \(S(n) - S(n-1)\) što je \(n^3\).


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