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 A014214 #11 Jun 08 2025 13:46:57 %S A014214 1,1,2,3,6,9,15,23,37,58,91,143,225,354,556,874,1373,2157,3389,5324, %T A014214 8363,13137,20636,32415,50918,79982,125636,197349,309996,486941, %U A014214 764885,1201479,1887278,2964530,4656673,7314686,11489882,18048264,28350147,44532308,69951185,109879065 %N A014214 a(n) = floor((Pi/2)^n). %t A014214 a[n_]:=Floor[(Pi/2)^n]; Array[a,42,0] (* _Stefano Spezia_, Jun 08 2025 *) %Y A014214 Cf. A019669. %K A014214 nonn %O A014214 0,3 %A A014214 _Clark Kimberling_ %E A014214 a(38)-a(41) from _Stefano Spezia_, Jun 08 2025