Number of nX6 0..2 arrays with every 1 immediately preceded by 0 to the left or above, no 0 immediately preceded by a 0, and every 2 immediately preceded by 0 1 to the left or above.
A203179
Number of nX6 0..2 arrays with every 1 immediately preceded by 0 to the left or above, no 0 immediately preceded by a 0, and every 2 immediately preceded by 0 1 to the left or above.
Terms
- a(0) =4a(1) =10a(2) =97a(3) =724a(4) =4654a(5) =32411a(6) =223567a(7) =1625772a(8) =10889470a(9) =76035931a(10) =539862935a(11) =3683134752a(12) =25862504933a(13) =179896714051
External references
- oeis: A203179