Number of (n+1) X 2 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock differing from each horizontal or vertical neighbor.
A205513
Number of (n+1) X 2 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock differing from each horizontal or vertical neighbor.
Terms
- a(0) =81a(1) =360a(2) =1683a(3) =7572a(4) =35577a(5) =160218a(6) =750426a(7) =3387924a(8) =15834846a(9) =71633088a(10) =334163931a(11) =1514409882a(12) =7052640282a(13) =32013216726a(14) =148862055267a(15) =676669161648
External references
- oeis: A205513