Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically.
A207490
Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically.
Terms
- a(0) =14a(1) =196a(2) =408a(3) =1459a(4) =4041a(5) =8808a(6) =21991a(7) =48044a(8) =105558a(9) =230156a(10) =490287a(11) =1049299a(12) =2221620a(13) =4710903a(14) =9955616a(15) =21033770a(16) =44465838a(17) =93802765a(18) =198306079a(19) =418690364a(20) =884240221a(21) =1869141068a(22) =3946519000a(23) =8342005680a(24) =17626630049a(25) =37237956591
External references
- oeis: A207490