Number of (n+1)X4 0..1 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in all its horizontal and vertical neighbors.
A205067
Number of (n+1)X4 0..1 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in all its horizontal and vertical neighbors.
Terms
- a(0) =98a(1) =90a(2) =144a(3) =220a(4) =347a(5) =524a(6) =850a(7) =1268a(8) =2048a(9) =3060a(10) =4942a(11) =7388a(12) =11938a(13) =17836a(14) =28826a(15) =43060a(16) =69621a(17) =103956a(18) =168108a(19) =250972a(20) =405913a(21) =605900a(22) =980086a(23) =1462772a(24) =2366374a(25) =3531444a(26) =5713346a(27) =8525660a(28) =13794016a(29) =20582764
External references
- oeis: A205067