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 A054197 #6 Nov 12 2019 08:44:05
%S A054197 1,2,4,8,17,39,95,241,629,1676,4533,12392,34145,94670,263853,738744,
%T A054197 2076817,5860033,16589996,47108718,134136047,382889797,1095452434,
%U A054197 3140672834,9021699845,25961239919,74829970930,216016298741,624469525203
%N A054197 Binomial transform of A000048.
%F A054197 G.f.: (1/(1 - x)) * (1 + Sum_{k>=1} mu(2*k)*log(1 - 2*(x/(1 - x))^k)/(2*k)). - _Ilya Gutkovskiy_, Nov 12 2019
%Y A054197 Cf. A000048.
%K A054197 nonn
%O A054197 0,2
%A A054197 _N. J. A. Sloane_, Apr 29 2000