Number of n X 2 0..4 arrays with values 0..4 introduced in row major order and no element equal to any horizontal or vertical neighbor.
A198900
Number of n X 2 0..4 arrays with values 0..4 introduced in row major order and no element equal to any horizontal or vertical neighbor.
Terms
- a(0) =1a(1) =4a(2) =33a(3) =380a(4) =4801a(5) =62004a(6) =804833a(7) =10459180a(8) =135958401a(9) =1767426404a(10) =22976444833a(11) =298693487580
External references
- oeis: A198900