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 A024594 #3 Mar 30 2012 18:55:58 %S A024594 2,5,17,24,54,71,137,166,296,342,588,674,1132,1264,2093,2337,3835, %T A024594 4216,6882,7455,12129,13171,21385,22991,37280,39664,64264,68539, %U A024594 110991,117400,190057,201677,326426,344314,557224,583768,944675,992284,1605675,1677193 %N A024594 s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (F(2), F(3), ...), t = A001950 (upper Wythoff sequence). %K A024594 nonn %O A024594 1,1 %A A024594 _Clark Kimberling_