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 A197764 #12 Sep 08 2022 08:45:59 %S A197764 5,73,1877,69730,3363233,199205127,13982257729,1134344816185, %T A197764 104416147080712,10750872867074587,1224163955433850944, %U A197764 152733676280699540999,20719969553916698313305,3036565789908881887393114,478082645334119488823777215,80475210949356295594385157621 %N A197764 Ceiling((4n+1/n)^n). %H A197764 Vincenzo Librandi, <a href="/A197764/b197764.txt">Table of n, a(n) for n = 1..300</a> %o A197764 (Magma) [Ceiling((4*n+1/n)^n): n in [1..20]] %o A197764 (PARI) a(n)=ceil((4*n+1/n)^n) \\ _Charles R Greathouse IV_, Nov 21 2011 %Y A197764 Cf. A014058. %K A197764 nonn,less %O A197764 1,1 %A A197764 _Vincenzo Librandi_, Oct 18 2011