A342599 Number of n X n 01-matrices with permanent 0 from which it is possible to obtain a 01-matrix with permanent 1 by increasing a single element by 1, up to permutation of rows and columns.

1, 3, 12, 74, 788, 16016, 658220, 55598924

Offset: 1

Author

Max Alekseyev, Mar 16 2021

Keywords

• nonn
• more
• hard

Crossrefs

Cf. A089482, A003024, A342598.

Extensions

a(8) from Max Alekseyev, Feb 10 2022