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 A197712 #11 Sep 08 2022 08:45:59
%S A197712 1,6,42,410,5032,75418,1334838,27249052,630249409,16288946267,
%T A197712 465239139606,14551915228366,494696673952511,18161513224841275,
%U A197712 716102966059713315,30181658957863752409,1354087807629298185929,64430442087414935111821,3240840189607299761533535,171821387249394349577932210
%N A197712 a(n) = floor((n+1/2)^n).
%H A197712 Vincenzo Librandi, <a href="/A197712/b197712.txt">Table of n, a(n) for n = 1..300</a>
%p A197712 A197712:=n->floor((n+1/2)^n): seq(A197712(n), n=1..25); # _Wesley Ivan Hurt_, Apr 18 2017
%t A197712 Table[Floor[(n+1/2)^n],{n,30}] (* _Harvey P. Dale_, Nov 15 2013 *)
%o A197712 (Magma) [Floor((n+1/2)^n): n in [1..20]]
%Y A197712 Cf. A014052.
%K A197712 nonn,easy
%O A197712 1,2
%A A197712 _Vincenzo Librandi_, Oct 18 2011