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A218761
Unmatched value maps: number of n X 4 binary arrays indicating the locations of corresponding elements not equal to any horizontal or vertical neighbor in a random 0..1 n X 4 array.
1
7, 47, 403, 2942, 22439, 170148, 1291662, 9807350, 74441043, 565067801, 4289417212, 32560993753, 247169557952, 1876254744847, 14242588588406, 108115048685864, 820697944019795, 6229892072413748, 47290913215565827
OFFSET
1,1
COMMENTS
Column 4 of A218765.
LINKS
EXAMPLE
Some solutions for n=3
..1..0..0..0....0..0..0..1....0..1..0..1....0..0..1..0....1..0..1..1
..0..0..0..1....0..0..0..1....0..0..0..0....1..0..0..0....0..0..0..0
..0..0..0..0....1..1..0..0....1..0..1..0....0..0..1..0....1..0..0..0
CROSSREFS
Cf. A218765.
Sequence in context: A349255 A093173 A368177 * A173772 A178002 A288722
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 05 2012
STATUS
approved