A341852 Number of perfect matchings in the 4 X n rook graph.

1, 3, 16, 132, 2016, 44928, 1551744, 68542848, 4211122176, 309852407808, 29839376553984, 3304540891072512, 460231661327007744, 71669823905083834368, 13644939814369185890304, 2845529932444144841981952, 710399582113730769218174976, 191237460565395319832268767232

Offset: 0

Author

Andrew Howroyd, Feb 21 2021

Keywords

• nonn

Links

• Andrew Howroyd, Table of n, a(n) for n = 0..50

Crossrefs

Row n=4 of A341850.