Number of 4 X n 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
A302011
Number of 4 X n 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =128a(2) =1808a(3) =25808a(4) =369040a(5) =5276816a(6) =75450768a(7) =1078839952a(8) =15425887120a(9) =220568403088
External references
- oeis: A302011