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I have this integral:

[tex]\int_0^{\infty}\nu^{n}e^{-j\nu[y+n]}\left[E_1(-j\nu)\right]^n\,d\nu[/tex]

How can I evaluate this integral? I found the attached integral formula in the table of integrals, but the exponential integral function ##E_1(.)## is not raised to the power of an exponent ##n\ge 0##. Any idea?

Thanks in advance

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# B How can I find this integral?

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