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Tanya Khovanova's user avatar
Tanya Khovanova's user avatar
Tanya Khovanova's user avatar
Tanya Khovanova
  • Member for 5 years, 8 months
  • Last seen more than 3 years ago
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 Yearling
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 Yearling
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Why is 1331 the only cube of the form $x^2 + x − 1$?
Thank you so much. That means, I need to fix the Wikipedia to say that this is the only non-trivial cube of this form.
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Why is 1331 the only cube of the form $x^2 + x − 1$?
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How to cite a sequence from The On-Line Encyclopedia of Integer Sequences (OEIS)?