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A346587 Value of k for incrementally largest value of k/A002322(k), where A002322 is the Carmichael function. 0

%I

%S 1,2,6,8,12,24,60,80,120,240,504,1040,1092,1170,1260,1365,1456,1560,

%T 1638,1680,1820,1872,2184,2340,2520,2730,3120,3276,3640,4095,4368,

%U 4680,5040,5460,6552,7280,8190,9360,10920,13104,16380,21840,32760,65520

%N Value of k for incrementally largest value of k/A002322(k), where A002322 is the Carmichael function.

%t max=0;lst={};Do[t=k/CarmichaelLambda@k;If[t>max,AppendTo[lst,k];max=t],{k,100000}];lst (* _Giorgos Kalogeropoulos_, Jul 26 2021 *)

%o (PARI) f(n) = lcm(znstar(n)[2]); \\ A002322

%o lista(nn) = {my(m=0, x, list=List()); for (n=1, nn, if ((x = n/f(n)) > m, m = x; listput(list, n));); Vec(list);} \\ _Michel Marcus_, Aug 04 2021

%Y Cf. A002322.

%K nonn,easy

%O 1,2

%A _Sofia Lacerda_, Jul 24 2021

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Last modified May 26 13:59 EDT 2022. Contains 354092 sequences. (Running on oeis4.)