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A188500
Number of n X n binary arrays without the pattern 0 1 0 diagonally, vertically or horizontally
0
2, 16, 229, 5626, 317751, 47153387, 15602080066, 10679333746605, 15965188461370862, 54469837118110826481, 418222453639358665952917, 7076429422309098758072976354, 264209106726567934754362229986426
OFFSET
1,1
COMMENTS
Diagonal of A188508
EXAMPLE
Some solutions for 3X3
..1..1..1....1..1..1....1..0..1....0..0..0....0..0..1....0..0..1....1..0..0
..1..1..1....0..0..0....1..0..0....1..0..0....0..0..0....0..0..1....1..0..1
..0..0..1....1..1..1....0..0..0....1..1..1....0..0..0....1..1..0....1..1..1
CROSSREFS
Sequence in context: A233141 A377445 A223631 * A188515 A152542 A206877
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 02 2011
STATUS
approved