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Template:Sequence of the Day for October 4

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Intended for: October 4, 2012

Timetable

  • First draft entered by Alonso del Arte on September 4, 2011
  • Draft to be reviewed by August 4, 2012
  • Draft to be approved by September 4, 2012
Yesterday's SOTD * Tomorrow's SOTD

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A000172: Franel numbers.

{ 1, 2, 10, 56, 346, 2252, 15184, ... }

Matthijs Coster realized that this is the Taylor expansion of a special point on a curve described by Arnaud Beauville.*

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* Arnaud Beauville, Laboratoire J.-A. Dieudonné, Université de Nice Sophia-Antipolis.