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 A369183 #34 Feb 05 2024 11:15:09
%S A369183 0,0,0,0,1,0,1,0,1,0,1,0,1,2,3,4,5,0,1,0,1,2,3,0,1,2,3,4,5,0,1,2,3,4,
%T A369183 5,0,1,2,3,4,5,6,7,8,9,10,11,0,1,2,3,4,5,6,7,8,9,10,11,0,1,2,3,4,5,6,
%U A369183 7,8,9,10,11,0,1,2,3,4,5,6,7,8,9,10,11,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,6
%N A369183 a(n) = n - A329004(n).
%e A369183 a(15) = 3 because the largest Ramanujan's largely composite number below 15 is 12, and 15-12=3.
%t A369183 dmax = 0; nmax = 1; seq = {}; Do[If[(d = DivisorSigma[0, n]) >= dmax, dmax = d; nmax = n]; AppendTo[seq,n- nmax], {n, 1, 102}];seq (* _James C. McMahon_, Jan 28 2024 *)
%Y A369183 Cf. A067128, A329004.
%K A369183 nonn
%O A369183 1,14
%A A369183 _Zhicheng Wei_, Jan 15 2024