A387568 Number of matchings in the n-Pell graph.

1, 2, 10, 934, 157470984, 7089400193709861200496

Offset

0,2

Links

Table of n, a(n) for n=0..5.

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

Eric Weisstein's World of Mathematics, Pell Graph.

Crossrefs

Sequence in context: A222420 A263921 A290495 * A255587 A382831 A137890

Adjacent sequences: A387565 A387566 A387567 * A387569 A387570 A387571

Keyword

nonn,more

Author

Eric W. Weisstein, Sep 02 2025

Extensions

a(4) corrected by Vincenzo Librandi, Sep 04 2025

a(5) from Andrew Howroyd, Sep 05 2025

a(0)=1 prepended by Alois P. Heinz, Sep 06 2025

Status

approved