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Template:Sequence of the Day for February 26

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Intended for: February 26, 2012

Timetable

  • First draft entered by Alonso del Arte on November 23, 2011
  • Draft reviewed by Daniel Forgues on February 22, 2016
  • Draft to be approved by January 26, 2012

Yesterday's SOTD * Tomorrow's SOTD

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A003064: Smallest number with addition chain of length
n
.
{ 1, 2, 3, 5, 7, 11, 19, 29, 47, 71, 127, ... }
What could be simpler than a sequence about addition? And yet, obtaining terms of this sequence beyond
a (24)
has involved many different people working independently of each other.