This site is supported by donations to The OEIS Foundation.

Template:Sequence of the Day for January 27

From OeisWiki
Jump to: navigation, search


Intended for: January 27, 2013

Timetable

  • First draft entered by Alonso del Arte on January 8, 2012
  • Draft reviewed by Daniel Forgues on January 26, 2016
  • Draft to be approved by December 27, 2011

Yesterday's SOTD * Tomorrow's SOTD

The line below marks the end of the <noinclude> ... </noinclude> section.



A078437: Decimal expansion of the sum of the alternating series of reciprocals of the primes.

0.26960635...

Is the number

i  = 1
  ( −1 )i  +1
1
pi
 = 
1
2
1
3
+
1
5
1
7
+
1
11
1
13
+
1
17
1
19
+

irrational? Transcendental?