Number of (n+1) X 3 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.
A205066
Number of (n+1) X 3 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) =40a(1) =64a(2) =90a(3) =146a(4) =244a(5) =386a(6) =638a(7) =1018a(8) =1666a(9) =2676a(10) =4360a(11) =7024a(12) =11418a(13) =18420a(14) =29882a(15) =48272a(16) =78228a(17) =126456a(18) =204798a(19) =331194a(20) =536146a(21) =867282a(22) =1403624a(23) =2270906a(24) =3674698a(25) =5945848a(26) =9620410a(27) =15567302a(28) =25186452a(29) =40757134
External references
- oeis: A205066