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