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Template:Sequence of the Day for January 27
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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
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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?