|
Search: id:A140178
|
|
|
| A140178 |
|
Half the number of n X n symmetric binary matrices with adjacent rows differing in at most three positions. |
|
+0
1
|
|
| 1, 4, 32, 427, 7396, 130612, 2097152, 30417025, 409957616, 5282779354
(list; graph; listen)
|
|
|
|
|
Search completed in 0.002 seconds
|
