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 A197322 #12 May 21 2025 18:44:41
%S A197322 3,20,254,4632,110408,3243617,113177496,4570858599,209655304352,
%T A197322 10763674952097,611433842280387,38071427445729200,2578294348444597266,
%U A197322 188670154792420320214,14834716200104606205407,1247263229999781126495327,111661618863544248806155259
%N A197322 a(n) = floor((2*n+1/n)^n).
%H A197322 Vincenzo Librandi, <a href="/A197322/b197322.txt">Table of n, a(n) for n = 1..300</a>
%t A197322 Table[Floor[(2n+1/n)^n],{n,20}] (* _Harvey P. Dale_, Mar 25 2018 *)
%o A197322 (Magma) [Floor((2*n+1/n)^n): n in [1..20]];
%Y A197322 Cf. A014052.
%K A197322 nonn
%O A197322 1,1
%A A197322 _Vincenzo Librandi_, Oct 17 2011