Number of n X 4 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than one of its immediate leftward or upward neighbors.
A208310
Number of n X 4 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than one of its immediate leftward or upward neighbors.
Terms
- a(0) =8a(1) =54a(2) =336a(3) =2052a(4) =12474a(5) =75744a(6) =459810a(7) =2791152a(8) =16942716a(9) =102844566a(10) =624279960a(11) =3789460422a(12) =23002516080a(13) =139628253924a(14) =847561596858
External references
- oeis: A208310