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Template:Sequence of the Day for January 9

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Intended for: January 9, 2012

Timetable

  • First draft entered by Alonso del Arte on November 8, 2011
  • Draft to be reviewed by November 9, 2011
  • Draft to be approved by December 9, 2011

Yesterday's SOTD * Tomorrow's SOTD

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A073277: Irregular primes with irregularity index two.

{ 157, 353, 379, 467, 547, 587, ... }

These prime numbers are just some of the prime numbers that were such a headache for Gabriel Lamé in trying to prove Fermat’s last theorem in the 19th century.