This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A299711 #19 Apr 20 2024 02:08:10 %S A299711 1,49,576,5804,42764,262818 %N A299711 Number of eleven-prime Carmichael numbers less than 10^n. %H A299711 Claude Goutier, <a href="http://www-labs.iro.umontreal.ca/~goutier/OEIS/A055553/">Text file readme.text summarizing enumeration of Carmichael numbers up to 10^22</a>. %H A299711 Claude Goutier, <a href="/A055553/a055553.txt">Text file readme.text summarizing enumeration of Carmichael numbers up to 10^22</a>. [Local copy, with permission] %H A299711 Richard Pinch, <a href="http://www.s369624816.websitehome.co.uk/rgep/cartable.html">Tables relating to Carmichael numbers</a>. %e A299711 60977817398996785 = 5*7*17*19*23*37*53*73*79*89*233 is the only Carmichael number with eleven prime factors below 10^17, so a(17) = 1. %Y A299711 For k-prime Carmichael numbers up to 10^n for k = 3,4,...,11, see A132195, A174612, A174613, A174614, A174615, A174616, A174617, A299710, A299711. %Y A299711 Cf. A002997, A006931, A055553. %K A299711 nonn,more,hard %O A299711 17,2 %A A299711 _Tim Johannes Ohrtmann_, Feb 17 2018 %E A299711 a(22) from _Claude Goutier_ added by _Amiram Eldar_, Apr 19 2024