A183475 - OEIS

A183475

Number of n X n 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors

1, 15, 117, 4015, 706473, 116198719, 84056287173

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

OFFSET

1,2

COMMENTS

Diagonal of A183483

LINKS

EXAMPLE

Some solutions for 4X4

..0..1..1..0....0..0..0..0....2..0..1..0....2..1..2..1....0..0..2..2

..0..0..0..0....1..0..0..0....2..0..1..0....2..0..1..1....2..0..0..0

..2..0..1..2....1..0..0..1....0..0..0..0....0..0..0..0....2..0..0..0

..2..0..1..2....0..0..0..1....1..1..0..0....0..2..2..0....0..0..0..0

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved