A363884 Number of connected bipartite graphs on 2n nodes with a distinguished partite set of size n and with a unimodular reduced adjacency matrix.

1, 1, 5, 41, 777, 38749, 5552904, 2358289931

Offset

1,3

Links

Table of n, a(n) for n=1..8.

Crossrefs

Inverse Euler transform of A363862.

Cf. A306837, A363846.

Sequence in context: A076094 A076131 A003719 * A181033 A189997 A342439

Adjacent sequences: A363881 A363882 A363883 * A363885 A363886 A363887

Keyword

nonn,more,hard

Author

Max Alekseyev, Jun 25 2023

Status

approved