Number of n X 3 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
A284160
Number of n X 3 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
Terms
- a(0) =3a(1) =13a(2) =62a(3) =461a(4) =2872a(5) =21790a(6) =154108a(7) =1174235a(8) =8682209a(9) =66280564a(10) =500956582a(11) =3842195970a(12) =29399659661a(13) =226595079490
External references
- oeis: A284160