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A186138
Number of (n+1)X7 0..2 arrays with no 2X2 subblock trace equal to any horizontal or vertical neighbor 2X2 subblock trace
1
1304424, 297562572, 71683161894, 17226840778164, 4163686846399494, 1006890732907711236, 243566994040674992586, 58923376595033869477548, 14255041036793840265910500, 3448666147857395420772494514
OFFSET
1,1
COMMENTS
Column 6 of A186141
LINKS
EXAMPLE
Some solutions for 3X7
..0..0..0..1..0..2..0....0..0..0..0..0..1..2....0..0..0..1..1..1..2
..0..0..1..0..1..0..0....0..0..2..1..2..0..2....0..0..1..0..2..0..2
..0..1..0..0..0..2..0....0..1..0..2..0..2..2....0..1..0..0..0..2..1
CROSSREFS
Sequence in context: A254194 A254187 A253799 * A066702 A261731 A141592
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 13 2011
STATUS
approved