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 A014858 #18 Aug 08 2021 11:32:26
%S A014858 1,5,11,25,55,125,275,625,1375,3125,6875,15625,16105,34375,75025,
%T A014858 78125,80525,171875,173767,177155,375125,390625,402625,603775,825275,
%U A014858 859375,868835,885775,1391555,1875625,1953125,2013125,2153855,3018875,4126375,4296875,4344175
%N A014858 Numbers k that divide s(k), where s(1)=1, s(j)=11*s(j-1)+j.
%t A014858 nxt[{n_,s_}]:={n+1,11s+n+1}; Transpose[Select[NestList[nxt,{1,1},3000000],Divisible[Last[#],First[#]]&]][[1]] (* _Harvey P. Dale_, Aug 21 2013 *)
%o A014858 (PARI) lista(nn) = my(s); for(k=1, nn, s=11*s+k; if(s%k==0, print1(k, ", "))); \\ _Jinyuan Wang_, Aug 08 2021
%Y A014858 s(n) = A014881(n).
%K A014858 nonn
%O A014858 1,2
%A A014858 _N. J. A. Sloane_, _Olivier Gérard_
%E A014858 More terms from Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), Jan 30 2001
%E A014858 More terms from _Jinyuan Wang_, Aug 08 2021