Number of nX7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 1 vertically.
A208554
Number of nX7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 1 vertically.
Terms
- a(0) =42a(1) =1764a(2) =10710a(3) =65025a(4) =221340a(5) =753424a(6) =1913940a(7) =4862025a(8) =10332630a(9) =21958596a(10) =41363322a(11) =77915929a(12) =134523480a(13) =232257600a(14) =375406920a(15) =606784689a(16) =931373730a(17) =1429596100a(18) =2104920510a(19) =3099260241a(20) =4409811252a(21) =6274540944a(22) =8675694300
External references
- oeis: A208554