A387565 Number of matchings in the n X n giraffe graph.

1, 1, 1, 1, 2207, 16150897, 557501216023

Offset

1,5

Links

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

Eric Weisstein's World of Mathematics, Giraffe Graph.

Eric Weisstein's World of Mathematics, Independent Edge Set.

Crossrefs

Sequence in context: A037210 A114360 A023319 * A207793 A232074 A278207

Adjacent sequences: A387562 A387563 A387564 * A387566 A387567 A387568

Keyword

nonn,more

Author

Eric W. Weisstein, Sep 02 2025

Status

approved