Number of n X 6 binary arrays with each 1 adjacent to exactly two other 1's.
A183327
Number of n X 6 binary arrays with each 1 adjacent to exactly two other 1's.
Terms
- a(0) =1a(1) =9a(2) =37a(3) =179a(4) =996a(5) =4740a(6) =21259a(7) =96524a(8) =443793a(9) =2054180a(10) =9533062a(11) =44194763a(12) =204545507a(13) =946059367a(14) =4375861741a(15) =20244334715a(16) =93671407936a(17) =433436316256
External references
- oeis: A183327