A299710 Number of ten-prime Carmichael numbers less than 10^n.

23, 340, 3058, 20738, 114232, 547528, 2347828

Offset: 16

Author

Tim Johannes Ohrtmann, Feb 17 2018

Keywords

• nonn
• more
• hard

References

• Paulo Ribenboim, The Little Book of Bigger Primes, Springer-Verlag NY 2004. See p. 220.

Links

• Claude Goutier, Text file readme.text summarizing enumeration of Carmichael numbers up to 10^22.
• Claude Goutier, Text file readme.text summarizing enumeration of Carmichael numbers up to 10^22. [Local copy, with permission]
• Richard Pinch, Tables relating to Carmichael numbers.

Crossrefs

For k-prime Carmichael numbers up to 10^n for k = 3,4,...,11, see A132195, A174612, A174613, A174614, A174615, A174616, A174617, A299710, A299711.

Cf. A002997, A006931, A055553.

Extensions

a(22) from Claude Goutier added by Amiram Eldar, Apr 19 2024