A234132 - OEIS

A234132

Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 9.

32, 152, 488, 1640, 4904, 16424, 53288, 189992, 673832, 2532392, 9515048, 36874280, 142925864, 562745384, 2215886888

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

OFFSET

1,1

COMMENTS

Diagonal of A234140

LINKS

EXAMPLE

Some solutions for n=5

..3..3..3..3..3..3....0..0..3..3..0..0....0..3..0..3..0..3....1..3..1..3..1..3

..3..0..3..0..3..0....3..0..0..3..3..0....3..3..3..3..3..3....0..1..0..1..0..1

..3..3..3..3..3..3....0..0..3..3..0..0....3..0..3..0..3..0....1..3..1..3..1..3

..0..3..0..3..0..3....3..0..0..3..3..0....1..1..1..1..1..1....0..1..0..1..0..1

..0..0..0..0..0..0....0..0..3..3..0..0....3..0..3..0..3..0....3..1..3..1..3..1

..3..0..3..0..3..0....3..0..0..3..3..0....3..3..3..3..3..3....0..1..0..1..0..1

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 19 2013

STATUS

approved