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A185494
Number of (n+1)X7 binary arrays with every 2X2 subblock sum equal to some horizontal or vertical neighbor 2X2 subblock sum
0
1332, 114724, 5442964, 294899588, 15557758676, 835833221744, 44566790792864, 2389300393136984, 127764645248937538
OFFSET
1,1
COMMENTS
Column 6 of A185497
EXAMPLE
Some solutions for 4X7
..0..0..0..0..1..0..1....0..0..0..1..1..0..1....0..0..0..1..1..1..1
..0..1..1..1..0..1..0....0..0..0..0..0..1..0....0..1..1..0..0..1..0
..0..0..0..0..0..1..0....0..0..0..1..0..0..0....0..0..0..0..1..1..1
..0..0..0..1..0..0..0....1..0..1..1..1..0..1....1..0..1..1..0..0..1
CROSSREFS
Sequence in context: A044882 A158743 A188308 * A035862 A003907 A043613
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 29 2011
STATUS
approved