Number of (n+1) X 2 0..1 arrays with the number of rightwards and downwards edge increases in each 2 X 2 subblock differing from the number in all its horizontal and vertical neighbors.
A205065
Number of (n+1) X 2 0..1 arrays with the number of rightwards and downwards edge increases in each 2 X 2 subblock differing from the number in all its horizontal and vertical neighbors.
Terms
- a(0) =16a(1) =40a(2) =98a(3) =238a(4) =584a(5) =1432a(6) =3516a(7) =8622a(8) =21158a(9) =51894a(10) =127322a(11) =312310a(12) =766198a(13) =1879520a(14) =4610912a(15) =11311058a(16) =27748262a(17) =68070236a(18) =166988412a(19) =409647388a(20) =1004934200a(21) =2465259322a(22) =6047686542a(23) =14835930358a(24) =36394946602a(25) =89282603930
External references
- oeis: A205065