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 A026731 #8 Feb 01 2014 15:28:22 %S A026731 1,1,2,4,7,16,27,65,108,267,440,1105,1812,4597,7514,19196,31307,80380, %T A026731 130883,337284,548547,1417582,2303413,5965622,9686617,25130844, %U A026731 40783083,105954110,171868037,447015744,724837891,1886996681 %N A026731 Greatest number in row n of array T given by A026725. %F A026731 a(2*n) = A026726(n); a(2*n+1) = A026674(n+1). - _Philippe Deléham_, Feb 01 2014 %Y A026731 Cf. A026674, A026726 %K A026731 nonn %O A026731 0,3 %A A026731 _Clark Kimberling_