%I #9 Aug 28 2021 18:23:14
%S 0,1,3,11,35,112,353,1111,3490,10966,34451,108231,340019,1068203,
%T 3355859,10542742,33121003,104052699,326891197,1026958985,3226286805,
%U 10135678925,31842174452,100035141333,314269665113,987307271166
%N a(n) = floor(Pi^n / e).
%t Floor[Pi^Range[0,30]/E] (* _Harvey P. Dale_, Aug 28 2021 *)
%K nonn,easy
%O 0,3
%A _Patrick De Geest_, May 15 1998