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 A293563 #9 Aug 26 2023 03:44:10 %S A293563 355,348,765,1092,2035,4457,6855,8253,12820,22270,33687,39171,46860, %T A293563 52087,54027,64917,91703,97860,115971,144291,154717,172267,222477, %U A293563 259098,278967,290820,304878,320929,368305,383656,402333,459571,489481,504165,532378,624325 %N A293563 a(n) = k is a number such that A007535(k), the smallest pseudoprime to base k ( > k), is the n-th Carmichael number. %C A293563 Pairs of consecutive terms that are not monotonic (a(n) > a(n+1)): (355, 348), (624325, 611289), (778947, 761178), ... corresponding to the Carmichael numbers (1105, 561), (656601, 658801), (825265, 838201), ... %H A293563 Amiram Eldar, <a href="/A293563/b293563.txt">Table of n, a(n) for n = 1..150</a> %e A293563 a(1) = 355 since 355 is the least k such that A007535(k) = 561 = A002997(1), the first Carmichael number. %e A293563 a(2) = 348 since 348 is the least k such that A007535(k) = 1105 = A002997(2), the second Carmichael number. %Y A293563 Cf. A002997, A007535, A293512. %K A293563 nonn %O A293563 1,1 %A A293563 _Amiram Eldar_, Oct 12 2017