Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4.
A197667
Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4.
Terms
- a(0) =4a(1) =22a(2) =95a(3) =546a(4) =2765a(5) =14503a(6) =74812a(7) =386556a(8) =2008698a(9) =10415923a(10) =54096117a(11) =280793815a(12) =1457402796a(13) =7564115674a(14) =39256668738a(15) =203743660496
External references
- oeis: A197667