Number of nX3 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 diagonally or antidiagonally.
A229375
Number of nX3 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 diagonally or antidiagonally.
Terms
- a(0) =22a(1) =126a(2) =956a(3) =6730a(4) =48490a(5) =346598a(6) =2486980a(7) =17808604a(8) =127696504a(9) =914844004a(10) =6558227280a(11) =46993954326a(12) =336844120550
External references
- oeis: A229375