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Question Number 73224 by mr W last updated on 09/Nov/19

$$findthecoefficient{a}_{k}ofterm{x}^{k}in$$$$\underset{r=1}{\prod ^n}(1+x^r)with0⩽k⩽\frac{n(n+1)}{2}$$$$$$$$example:n=100,k=50$$

Answered by mind is power last updated on 08/Nov/19

$$\mathrm{this}\pi (\mathrm{n},\mathrm{k})\mathrm{ramanujan}\mathrm{fonction}\mathrm{of}\mathrm{partition}\mathrm{of}\mathrm{an}\mathrm{integer}\mathrm{n}\mathrm{in}\mathrm{k}\mathrm{integer}$$$$$$$$$$

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