A277775 Decimal expansion of the prime triples constant, also known as Brun's constant B_{3b} = Sum (1/p + 1/(p+4) + 1/(p+6)) as p runs through the initial members of prime triples A022005.
8, 3, 7, 1, 1, 3, 2, 1, 2, 4, 1, 1
Offset: 0
Examples
0.837113212411...
References
- Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, 2003, Section 2.14, p. 133.
Links
- Thomas R. Nicely, Prime Constellations Research Project (Mar 16 2010).
Extensions
Offset corrected by Rick L. Shepherd, Nov 03 2016