Number of n X 2 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally.
A229366
Number of n X 2 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally.
Terms
- a(0) =8a(1) =38a(2) =184a(3) =869a(4) =4144a(5) =19675a(6) =93589a(7) =444824a(8) =2114934a(9) =10054148a(10) =47798953a(11) =227238276a(12) =1080310539a(13) =5135871337a(14) =24416324712a(15) =116077006646a(16) =551838764656
External references
- oeis: A229366