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 A212462 #19 Jan 19 2024 20:02:04
%S A212462 9,24,41,60,81,103,125,148,172,196,221,246,272,298,324,351,378,405,
%T A212462 433,461,489,518,546,575,604,633,663,692,722,752,782,813,843,874,904,
%U A212462 935,966,997,1029,1060,1092,1123,1155
%N A212462 a(n) = ceiling(5n*log(5n)).
%H A212462 Vincenzo Librandi, <a href="/A212462/b212462.txt">Table of n, a(n) for n = 1..1000</a>
%F A212462 a(n) = A050502(5*n). - _Michel Marcus_, Jan 11 2016
%t A212462 Table[Ceiling[5*n*Log[5*n]], {n, 80}] (* _Vincenzo Librandi_, Feb 14 2013 *)
%o A212462 (Derive) PROG(y := [], x := 100, LOOP(IF(x = 0, RETURN y), y := ADJOIN(CEILING(5·x·LOG(5·x)), y), x := x - 1))
%o A212462 (Magma) [Ceiling(5*n*Log(5*n)): n in [1..80]]; // _Vincenzo Librandi_, Feb 14 2013
%o A212462 (PARI) a(n) = ceil(5*n*log(5*n)); \\ _Michel Marcus_, Jan 11 2016
%Y A212462 Cf. A050502, A050504, A212455, A212456, A212457, A212458, A212459, A212460, A212461.
%K A212462 easy,nonn
%O A212462 1,1
%A A212462 _Mohammad K. Azarian_, May 31 2012