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.
29, 581, 10269, 172143, 2816409, 45550691, 732630205, 11751896403, 188262802525, 3014016321451, 48238373155229, 771923890744731, 12351638368337101, 197632881512065275, 3162178031998196717
Offset: 2