A224737 Number of (n+1)X(n+1) 0..1 matrices with each 2X2 permanent equal

16, 152, 2961, 180546, 21910274, 6987578401, 4577116826010, 7263975840668720, 24830489629274669185, 198126079091642018885794, 3494153303559933894658838690, 141264727800468875841382090858433

Offset

1,1

Comments

Diagonal of A224745

Links

R. H. Hardin, Table of n, a(n) for n = 1..16

Example

Some solutions for n=3
..1..0..1..1....1..1..1..0....1..1..0..0....0..0..0..1....1..1..0..0
..1..1..1..0....0..0..0..0....0..0..0..1....0..0..0..0....0..0..0..0
..0..1..0..1....0..1..0..0....0..0..0..1....1..1..0..0....0..0..0..0
..1..0..1..1....0..1..0..0....1..0..0..0....0..0..0..0....1..0..0..1

Crossrefs

Sequence in context: A022644 A297090 A279323 * A076071 A096136 A080423

Adjacent sequences: A224734 A224735 A224736 * A224738 A224739 A224740

Keyword

nonn

Author

R. H. Hardin Apr 17 2013

Status

approved