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#30 by Peter Luschny at Mon Sep 04 06:07:55 EDT 2023
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#29 by Michel Marcus at Mon Sep 04 05:59:01 EDT 2023
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#28 by Joerg Arndt at Mon Sep 04 04:35:16 EDT 2023
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#27 by Joerg Arndt at Mon Sep 04 04:34:57 EDT 2023
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| PROG
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(PARI) my(N=70, x='x+O('x^N)); Vec((eta(-x)-1)^4) \\ Joerg Arndt, Sep 04 2023
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| STATUS
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proposed
editing
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#26 by G. C. Greubel at Mon Sep 04 02:00:05 EDT 2023
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#25 by G. C. Greubel at Mon Sep 04 01:59:59 EDT 2023
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#24 by G. C. Greubel at Mon Sep 04 01:00:17 EDT 2023
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| MATHEMATICA
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Drop[CoefficientList[Series[(1 -QPochhammer[-x])^4, {x, 0, 100}], x], 4] (* G. C. Greubel, Sep 04 2023 *)
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| PROG
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(Magma)
m:=102;
R<x>:=PowerSeriesRing(Integers(), m);
Coefficients(R!( (1 - (&*[1-(-x)^j: j in [1..m+2]]))^4 )); // G. C. Greubel, Sep 04 2023
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| STATUS
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approved
editing
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#23 by Jon E. Schoenfield at Tue Feb 01 23:37:24 EST 2022
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#22 by Jon E. Schoenfield at Tue Feb 01 23:37:22 EST 2022
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| AUTHOR
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_N. J. A. Sloane_._
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| STATUS
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approved
editing
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#21 by Alois P. Heinz at Sun Feb 07 20:43:38 EST 2021
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