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 A212461 #22 Jan 19 2024 20:18:10
%S A212461 6,17,30,45,60,77,94,111,130,148,167,186,206,226,246,267,287,308,330,
%T A212461 351,373,395,417,439,461,484,506,529,552,575,598,622,645,669,692,716,
%U A212461 740,764,788,813,837,861,886,911,935
%N A212461 a(n) = ceiling(4n*log(4n)).
%H A212461 Vincenzo Librandi, <a href="/A212461/b212461.txt">Table of n, a(n) for n = 1..1000</a>
%F A212461 a(n) = A050502(4*n). - _Michel Marcus_, Jan 11 2016
%t A212461 Table[Ceiling[4*n*Log[4*n]], {n, 80}] (* _Vincenzo Librandi_, Feb 13 2013 *)
%o A212461 (Derive) PROG(y := [], x := 100, LOOP(IF(x = 0, RETURN y), y := ADJOIN(CEILING(4·x·LOG(4·x)), y), x := x - 1))
%o A212461 (Magma) [Ceiling(4*n*Log(4*n)): n in [1..80]]; // _Vincenzo Librandi_, Feb 13 2013
%o A212461 (PARI) a(n) = ceil(4*n*log(4*n)); \\ _Michel Marcus_, Jan 11 2016
%Y A212461 Cf. A050502, A050504, A212455, A212456, A212457, A212458, A212459, A212460, A212462.
%K A212461 easy,nonn
%O A212461 1,1
%A A212461 _Mohammad K. Azarian_, May 31 2012