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 A026296 #3 Mar 30 2012 18:56:05 %S A026296 1,6,38,229,1349,7894,46122,269607,1578035,9251060,54322938,319502765, %T A026296 1882040458,11102029850,65576732025,387817554915,2296120266390, %U A026296 13608607411660,80732861599612,479372928880782 %N A026296 a(n) = T(2n,n+1), where T is the array in A026268. %K A026296 nonn %O A026296 1,2 %A A026296 _Clark Kimberling_