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 A351623 #26 Jun 02 2022 10:41:06
%S A351623 1,2,4,8,12,16,20,40,60,80,120,240,280,420,560,840,1680,2520,3360,
%T A351623 5040,6720,8400,9240,15120,16800,18480,27720,36960,55440,73920,92400,
%U A351623 110880,166320,184800,221760,240240,360360,480480,720720,960960,1201200,1441440,2162160,2402400
%N A351623 Numbers k where 3k sets a record for the number of divisors of multiples of 3.
%C A351623 This sequence may be useful for understanding A352797.
%F A351623 For n > 1, a(n) = A002182(n+2)/3.
%e A351623 6 is not in the sequence because 3*6=18 and 3*4=12 each have 6 divisors.
%e A351623 8 is in the sequence because 3*8=24 sets a record for the number of divisors of multiples of 3.
%o A351623 (PARI) lista(nn) = {my(m=0, nm); for (n=1, nn, if ((nm=numdiv(3*n)) > m, m = nm; print1(n, ", ")););} \\ _Michel Marcus_, May 04 2022
%Y A351623 Cf. A002182, A352797.
%K A351623 nonn
%O A351623 1,2
%A A351623 _J. Lowell_, May 04 2022
%E A351623 More terms from _Michel Marcus_, May 04 2022