Number of nX4 0..2 arrays with no element equal to more than one of its horizontal and vertical neighbors and with new values introduced in order 0 sequentially upwards.
A280359
Number of nX4 0..2 arrays with no element equal to more than one of its horizontal and vertical neighbors and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =11a(1) =285a(2) =6727a(3) =164326a(4) =3992071a(5) =97147710a(6) =2363431872a(7) =57503068637
External references
- oeis: A280359