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 A212453 #17 Sep 08 2022 08:46:02
%S A212453 6,11,15,19,23,28,32,36,40,44,48,52,56,61,65,69,73,77,81,85,89,93,97,
%T A212453 101,105,109,113,117,121,125,129,133,137,141,145,149,153,158,162,166,
%U A212453 170,174,178,182,186,190,194,198,202,206,210,214,218,222,226,230
%N A212453 a(n) = ceiling(4n + log(4n)).
%H A212453 Vincenzo Librandi, <a href="/A212453/b212453.txt">Table of n, a(n) for n = 1..1000</a>
%t A212453 Table[Ceiling[4*n + Log[4*n]], {n, 100}] (* _T. D. Noe_, May 21 2012 *)
%o A212453 (Magma) [Ceiling(4*n + Log(4*n)): n in [1..80]]; // _Vincenzo Librandi_, Feb 14 2013
%Y A212453 Cf. A000523, A062153, A102572, A212445-A212454.
%K A212453 nonn,easy
%O A212453 1,1
%A A212453 _Mohammad K. Azarian_, May 17 2012