Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #8 Sep 08 2022 08:45:59
%S 3,20,254,4632,110408,3243617,113177496,4570858599,209655304352,
%T 10763674952097,611433842280387,38071427445729200,2578294348444597266,
%U 188670154792420320214,14834716200104606205407,1247263229999781126495327,111661618863544248806155259
%N Floor((2*n+1/n)^n)
%H Vincenzo Librandi, <a href="/A197322/b197322.txt">Table of n, a(n) for n = 1..300</a>
%t Table[Floor[(2n+1/n)^n],{n,20}] (* _Harvey P. Dale_, Mar 25 2018 *)
%o (Magma) [Floor((2*n+1/n)^n): n in [1..20]]
%Y Cf. A014052
%K nonn
%O 1,1
%A _Vincenzo Librandi_, Oct 17 2011