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A188308
Number of (n+1)X7 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums
0
1332, 71888, 1514522, 37040856, 878907878, 21615769428, 520845610752
OFFSET
1,1
COMMENTS
Column 6 of A188311
EXAMPLE
Some solutions for 3X7
..0..1..0..0..0..1..0....0..1..1..1..1..0..0....1..1..0..1..0..1..1
..0..0..0..0..0..1..0....1..1..0..1..0..1..1....1..1..1..0..1..1..0
..0..1..1..1..0..0..0....0..1..0..1..1..0..0....1..1..0..0..0..1..1
CROSSREFS
Sequence in context: A050646 A044882 A158743 * A185494 A035862 A003907
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 27 2011
STATUS
approved