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%I #13 Oct 28 2021 13:09:16
%S 1,0,9,7,8,5,1,0,3,9,6,7,9
%N Decimal expansion of the prime triples constant, also known as Brun's constant B_{3a} = Sum (1/p + 1/(p+2) + 1/(p+6)) as p runs through the initial members of prime triples A022004.
%H Thomas R. Nicely, <a href="https://faculty.lynchburg.edu/~nicely/counts.html">Prime Constellations Research Project</a> (Mar 16 2010).
%e 1.097851039679...
%Y Cf. A022004, A065421, A194098, A213007, A277775.
%K nonn,cons,hard,more
%O 1,3
%A _Martin Renner_, Oct 29 2016
%E Offset corrected by _Rick L. Shepherd_, Nov 03 2016
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