A360878 Number of (undirected) paths in the 2 X n rook graph.

1, 12, 129, 1984, 45945, 1524156, 68838217

Offset

1,2

Links

Table of n, a(n) for n=1..7.

Crossrefs

Row 2 of A360877.

Cf. A096121, A276356, A341500.

Sequence in context: A199037 A099157 A239407 * A163414 A111777 A209013

Adjacent sequences: A360875 A360876 A360877 * A360879 A360880 A360881

Keyword

nonn,more

Author

Andrew Howroyd, Feb 25 2023

Status

approved