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 A328938 #18 Apr 22 2024 08:12:06 %S A328938 294409,167979421,1152091655881,62411762908817281,1516087654274358001 %N A328938 Least imprimitive Carmichael number (A328935) with n prime factors, or -1 if no such number exists. %C A328938 From _Daniel Suteu_, Feb 17 2020: (Start) %C A328938 a(8) <= 42310088783100741554666880481, %C A328938 a(9) <= 21593590390253023722267234622513201, %C A328938 a(10) <= 16412975107923138847512341751620644377601, %C A328938 a(11) <= 325533792014488126487416882038879701391121. (End) %C A328938 a(8) > 10^22. - _Amiram Eldar_, Apr 22 2024 %H A328938 Andrew Granville and Carl Pomerance, <a href="https://doi.org/10.1090/S0025-5718-01-01355-2">Two contradictory conjectures concerning Carmichael numbers</a>, Mathematics of Computation, Vol. 71, No. 238 (2002), pp. 883-908. %H A328938 <a href="/index/Ca#Carmichael">Index entries for sequences related to Carmichael numbers</a>. %Y A328938 Cf. A002997, A006931, A328935. %K A328938 nonn,more %O A328938 3,1 %A A328938 _Amiram Eldar_, Oct 31 2019 %E A328938 Escape clause added by _Amiram Eldar_, Apr 22 2024