A. V., “Об уравнении <nobr>$\displaystyle\sum_{x=1}^{x=n}N^3_x=0$</nobr>”, Mat. Pros., Ser. 1, 1935, Issue 4,Pages <nobr>11

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Mat. Pros., Ser. 1, 1935 Issue 4, Pages 11–12 (Mi mp455)

Elementary mahtematic

Об уравнении $\displaystyle\sum_{x=1}^{x=n}N^3_x=0$

A. V.