A183509 - OEIS

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A183509

Number of n X n binary arrays with each element equal to either the sum mod 2 of its horizontal and vertical neighbors or the sum mod 2 of its diagonal and antidiagonal neighbors.

1, 4, 37, 736, 24194, 2075747, 401449253, 174957270750

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Diagonal of A183517.

LINKS

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

EXAMPLE

Some solutions for 3 X 3

..1..0..0....1..0..0....1..0..1....1..0..0....0..1..0....0..0..0....1..1..1

..1..1..0....1..0..1....0..1..0....1..1..0....1..0..0....0..1..0....1..1..1