|
Search: id:A144240
|
|
|
| A144240 |
|
Number of n X n binary arrays, symmetric about both diagonal and antidiagonal, with every 1 adjacent to at least one other 1 both bishopwise and rookwise but with no three 1s in a row bishopwise or rookwise. |
|
+0
1
|
|
| 1, 2, 1, 5, 4, 10, 32, 89, 174, 2023, 3612, 30003, 170438, 1387640, 7339317, 153956133, 877660696, 18345445123, 211690980458, 5237531076262
(list; graph; listen)
|
|
|
Search completed in 0.002 seconds
|
