Number of n X 3 0..3 arrays with values 0..3 introduced in row major order, the number of instances of each value within one of each other, and every element equal to one or two horizontal or vertical neighbors.
A199360
Number of n X 3 0..3 arrays with values 0..3 introduced in row major order, the number of instances of each value within one of each other, and every element equal to one or two horizontal or vertical neighbors.
Terms
- a(0) =0a(1) =0a(2) =20a(3) =23a(4) =1655a(5) =39597a(6) =336788a(7) =2130707a(8) =97253704a(9) =2328983293a(10) =27777628803a(11) =109663812046
External references
- oeis: A199360