Number of n-ominoes in n X n grid (i.e., rookwise connected sets of n cells in a square array with n rows and n columns).
A272435
Number of n-ominoes in n X n grid (i.e., rookwise connected sets of n cells in a square array with n rows and n columns).
Terms
- a(0) =1a(1) =4a(2) =22a(3) =113a(4) =571a(5) =2816a(6) =13616a(7) =64678a(8) =302574a(9) =1397318a(10) =6382660a(11) =28882214a(12) =129640058a(13) =577812724a(14) =2559491834a(15) =11276000877a(16) =49437494408a(17) =215815377168
External references
- oeis: A272435