Number of 3 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
A284336
Number of 3 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
Terms
- a(0) =4a(1) =13a(2) =49a(3) =373a(4) =2259a(5) =18114a(6) =120058a(7) =959041a(8) =6725380a(9) =53524100a(10) =389145239a(11) =3078502323a(12) =22909373317a(13) =180462930528
External references
- oeis: A284336