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A360878
Number of (undirected) paths in the 2 X n rook graph.
1
1, 12, 129, 1984, 45945, 1524156, 68838217
OFFSET
1,2
CROSSREFS
Row 2 of A360877.
Sequence in context: A199037 A099157 A239407 * A163414 A111777 A209013
KEYWORD
nonn,more
AUTHOR
Andrew Howroyd, Feb 25 2023
STATUS
approved