Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 1 vertically.
A207688
Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 1 vertically.
Terms
- a(0) =2a(1) =16a(2) =60a(3) =256a(4) =1872a(5) =15376a(6) =145200a(7) =1887876a(8) =32939236a(9) =653211364a(10) =16761239040a(11) =557862597604
External references
- oeis: A207688