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 A140231 #11 Jul 09 2025 04:43:09
%S A140231 6,26,129,647,3263,16453,82971,418433,2110227,10642223,53670491,
%T A140231 270669172,1365029469,6884069717,34717503879,175086122783,
%U A140231 882988319045,4453056354096,22457500812922,113256896535457,571173289481198
%N A140231 a(n) = ceiling(e^(n*(1+sqrt(5))/2)).
%t A140231 Table[Ceiling[E^(n*GoldenRatio)],{n,30}] (* _Harvey P. Dale_, Mar 12 2015 *)
%Y A140231 Cf. A139341, A140232, A140233.
%K A140231 nonn
%O A140231 1,1
%A A140231 _Mohammad K. Azarian_, May 13 2008