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 A338443 #26 Apr 21 2024 10:00:08 %S A338443 60977817398996785,105083995864811041,107473646345582881, %T A338443 132819104923908481,145671955835893201,161802381510126721, %U A338443 165167398073764801,206063729626916161,263076030916096321,292433912163313921,292561243007134465,337365329710615921,388219799621120545 %N A338443 Carmichael numbers with 11 prime factors. %H A338443 Amiram Eldar, <a href="/A338443/b338443.txt">Table of n, a(n) for n = 1..10000</a> (calculated using data from Claude Goutier; terms 1..1142 from Daniel Suteu) %H A338443 Claude Goutier, <a href="http://www-labs.iro.umontreal.ca/~goutier/OEIS/A055553/">Compressed text file carm10e22.gz containing all the Carmichael numbers up to 10^22</a>. %H A338443 Richard Pinch, <a href="http://www.s369624816.websitehome.co.uk/rgep/cartable.html">Tables relating to Carmichael numbers</a>. %F A338443 Equals A002997 intersect A069272. %e A338443 60977817398996785 = 5*7*17*19*23*37*53*73*79*89*233 and 4, 6, 16, 18, 22, 36, 52, 72, 78, 88, 232 all divide 60977817398996784. %o A338443 (PARI) is(n)={omega(n)==11&&is_A002997(n)} %Y A338443 Cf. A002997 (Carmichael numbers). %Y A338443 Cf. A006931 (Least Carmichael number with n prime factors). %Y A338443 Cf. A299710 (Number of terms less than 10^n). %Y A338443 Cf. A087788, A074379, A112428, A112429, A112430, A112431, A112432, A338442 (Carmichael numbers with 3-10 prime factors). %K A338443 nonn %O A338443 1,1 %A A338443 _Tim Johannes Ohrtmann_, Oct 28 2020