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 A032739 #14 Jun 09 2020 13:49:13 %S A032739 1,1,1,1,1,2,2,2,3,3,4,4,5,6,7,8,10,11,13,15,18,20,24,27,32,37,43,49, %T A032739 57,66,76,88,102,118,137,158,183,211,244,282,326,377,436,504,582,673, %U A032739 778,899,1040,1202,1389,1605,1855,2144,2478,2864,3310,3826,4421,5110,5906 %N A032739 a(n) = floor( (Pi/e)^n ). %t A032739 Floor[(Pi/E)^Range[0,60]] (* _Harvey P. Dale_, Sep 30 2011 *) %o A032739 (PARI) a(n) = floor( (Pi/exp(1))^n ); \\ _Michel Marcus_, Jun 09 2020 %Y A032739 Cf. A061382 (Pi/e). %K A032739 nonn,easy %O A032739 0,6 %A A032739 _Patrick De Geest_, May 15 1998 %E A032739 a(0)=1 prepended by _Georg Fischer_, Jun 09 2020