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 A346783 #5 Aug 04 2021 07:44:08
%S A346783 1,8,10,20,41,44,86,147,210,264,426,500,559,633,795,950,1069,1171,
%T A346783 1218,1327,1330,1342,1402,1551,1672,1974,2274,2528,2725,2730,2911,
%U A346783 2928,2994,3117,3315,3443,3495,3524,4061,4347,4651,4703,4818,5049,5322,5447,5449,5756
%N A346783 a(n) = A006577(A346782(n)), records in A070974.
%o A346783 (PARI) a6577(n0)={my(n=n0, k=0); while(n>1, k++; n=if(n%2, 3*n+1, n/2)); k};
%o A346783 a346783(limit)={my(msteps=0);for(k=0,limit,my(m=a6577(k!));if(m>msteps,print1(m,", ");msteps=m))};
%o A346783 a346783(150)
%Y A346783 Cf. A006577, A070974, A346782.
%K A346783 nonn
%O A346783 1,2
%A A346783 _Hugo Pfoertner_, Aug 04 2021