Number of 4 X n 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
A281656
Number of 4 X n 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =384a(2) =10572a(3) =135444a(4) =1887730a(5) =23075928a(6) =270969324a(7) =3113195344a(8) =34971286598a(9) =386653964892
External references
- oeis: A281656