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 A069295 #7 Mar 31 2012 12:34:59 %S A069295 29,581,10269,172143,2816409,45550691,732630205,11751896403, %T A069295 188262802525,3014016321451,48238373155229,771923890744731, %U A069295 12351638368337101,197632881512065275,3162178031998196717 %N A069295 Number of n X 4 binary arrays with a path of adjacent 1's from upper left corner to anywhere in right hand column. %Y A069295 Cf. n X 2 A002450, n X 3 A069294, n X 5 A069296, n X 6 A069297, n X 7 A069298, n X 8 A069299, n X 9 A069300, n X 10 A069301, n X 11 A069302, n X 12 A069303, n X 13 A069304, n X 14 A069305, read by rows A069306-A069320. %K A069295 nonn %O A069295 2,1 %A A069295 _R. H. Hardin_, Mar 14 2002