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 A212449 #20 Sep 08 2022 08:46:02
%S A212449 6,12,17,22,28,33,38,43,48,53,59,64,69,74,79,84,89,94,99,104,109,114,
%T A212449 119,124,129,134,139,144,149,155,160,165,170,175,180,185,190,195,200,
%U A212449 205,210,215,220,225,230,235,240,245,250,255,260,265,270,275,280,285
%N A212449 Floor(5n + log(5n)).
%H A212449 Vincenzo Librandi, <a href="/A212449/b212449.txt">Table of n, a(n) for n = 1..1000</a>
%t A212449 Table[Floor[5*n + Log[5*n]], {n, 100}] (* _T. D. Noe_, May 21 2012 *)
%o A212449 (Magma) [Floor(5*n + Log(5*n)): n in [1..80]]; // _Vincenzo Librandi_, Feb 14 2013
%o A212449 (PARI) a(n)=5*n+log(5*n)\1 \\ _Charles R Greathouse IV_, Sep 04 2015
%Y A212449 Cf. A000523, A062153, A102572, A212445, A212446, A212447, A212448, A212450, A212451, A212452, A212453, A212454.
%K A212449 nonn,easy
%O A212449 1,1
%A A212449 _Mohammad K. Azarian_, May 17 2012