Number of 3Xn arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
A221330
Number of 3Xn arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
Terms
- a(0) =1a(1) =99a(2) =2008a(3) =46105a(4) =1010078a(5) =22181855a(6) =487335857a(7) =10702699654a(8) =234960268184
External references
- oeis: A221330