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Template:Sequence of the Day for April 10

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Intended for: April 10, 2013

Timetable

  • First draft entered by Alonso del Arte on January 25, 2012
  • Draft reviewed by Daniel Forgues on April 10, 2016
  • Draft to be approved by March 10, 2013

Yesterday's SOTD * Tomorrow's SOTD

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A203907: Successor function for Conway's PRIMEGAME.

{ 55, 15, 165, 30, 275, 45, 1, 60, 495, ... }

This sequence demonstrates that Conway's prime producing "machine" never stops working. Whatever integer is input, one of two things will happen: either the machine will take us on a roller-coaster ride towards a power of 2 with a prime exponent, or get stuck on an infinite loop between two values. But never will it happen that the machine receives an integer and refuses to do anything to it.