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%I #11 Sep 08 2022 08:45:59
%S 3,21,255,4633,110409,3243618,113177497,4570858600,209655304353,
%T 10763674952098,611433842280388,38071427445729201,2578294348444597267,
%U 188670154792420320215,14834716200104606205408,1247263229999781126495328,111661618863544248806155260
%N Ceiling((2n+1/n)^n).
%H Vincenzo Librandi, <a href="/A197716/b197716.txt">Table of n, a(n) for n = 1..300</a>
%o (Magma) [Ceiling((2*n+1/n)^n): n in [1..20]]
%o (PARI) a(n)=ceil((2*n+1/n)^n) \\ _Charles R Greathouse IV_, Nov 21 2011
%Y Cf. A014058.
%K nonn,less
%O 1,1
%A _Vincenzo Librandi_, Oct 18 2011
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