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A251218
Number of (n+1)X(7+1) 0..1 arrays with no 2X2 subblock having zero or two 1s
1
1477, 17119, 206715, 2746607, 35978029, 482274751, 6424279907, 86110233175, 1151625700234, 15428988432635, 206554265595500, 2766688606209457, 37049013254772388, 496208364895357327, 6645304659025154869
OFFSET
1,1
COMMENTS
Column 7 of A251219
LINKS
EXAMPLE
Some solutions for n=2
..1..1..0..0..1..1..1..1....0..0..1..1..0..1..0..0....1..1..1..1..0..1..1..1
..1..0..0..1..1..1..1..0....0..1..1..1..1..1..1..0....1..1..0..1..1..1..0..1
..1..1..0..0..1..1..1..1....0..0..1..1..0..1..0..0....1..0..0..0..1..1..1..1
CROSSREFS
Sequence in context: A157505 A290723 A187531 * A188363 A334687 A255789
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 30 2014
STATUS
approved