A365497 Number of connected induced (non-null) subgraphs of the n-Pell graph.

1, 3, 21, 1473, 123121657

Offset

0,2

Links

Table of n, a(n) for n=0..4.

Eric Weisstein's World of Mathematics, Pell Graph

Crossrefs

Sequence in context: A367999 A290766 A290872 * A012110 A265637 A054739

Adjacent sequences: A365494 A365495 A365496 * A365498 A365499 A365500

Keyword

nonn,more

Author

Eric W. Weisstein, Sep 06 2023

Status

approved