The evaluation of κ3

@article{Chick2008TheEO,
  title={The evaluation of κ3},
  author={J. M. Chick and G. H. Davies},
  journal={Math. Comput.},
  year={2008},
  volume={77},
  pages={547-550}
}
Numerical evidence relevant to the evaluation of the constant κ3 in the conjectural distribution of three-prime Carmichael numbers of Granville and Pomerance (2001) is summarised. 

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