OFFSET
1,2
EXAMPLE
For n = 2, the a(2) = 5 solutions are:
+---+ +---+---+ +---+---+ +---+---+ +---+---+
| | | | | | | | | | | | | |
| * | | **|** | | * | * | | **|** | | **|** |
| * | | | * | | * | * | | * | | | * | * |
+---+ +---+---+ +---+---+ +---+---+ +---+---+
| * | | | * | | * | * | | * | | | * | * |
| * | | **|** | | **|** | | **|** | | * | * |
| | | | | | | | | | | | | |
+---+ +---+---+ +---+---+ +---+---+ +---+---+
CROSSREFS
KEYWORD
nonn,walk,more
AUTHOR
Douglas Boffey, Oct 09 2023
EXTENSIONS
More terms (using A332307) from Pontus von Brömssen, Oct 09 2023
STATUS
approved