A181032 Number of nX(n+1) binary matrices with no initial bit string in any row or column divisible by 4

1, 3, 17, 227, 6743, 454385, 69050253, 23720149995, 18403310404291, 32260116141540213, 127750070550172845235, 1142905840646183024996181, 23099457587377397021217958619, 1054727887880873003123899368746005

Offset

1,2

Comments

Superdiagonal 1 of A181031

Links

R. H. Hardin, Table of n, a(n) for n=1..22

Example

Some solutions for 4X5
..1..1..1..1..1....1..1..1..1..1....1..1..1..1..1....1..1..1..1..1
..1..0..1..0..1....1..0..1..0..1....1..0..1..0..1....1..0..1..0..1
..1..1..0..1..0....1..1..0..1..0....1..1..0..1..0....1..1..0..1..0
..1..0..1..0..1....1..0..1..1..1....1..1..1..0..1....1..1..1..1..1

Crossrefs

Sequence in context: A075271 A194925 A072350 * A331649 A322737 A376008

Adjacent sequences: A181029 A181030 A181031 * A181033 A181034 A181035

Keyword

nonn

Author

R. H. Hardin Sep 30 2010

Status

approved