A196211 - OEIS

A196211

Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,1,2,4 for x=0,1,2,3,4

1, 9, 58, 2161, 173216, 33962624, 17831030743, 24799094512239

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

OFFSET

1,2

COMMENTS

Every 0 is next to 0 3's, every 1 is next to 1 0's, every 2 is next to 2 1's, every 3 is next to 3 2's, every 4 is next to 4 4's

Diagonal of A196218

LINKS

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved