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A260293
Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001001
1
4762, 8550, 21028, 45596, 62980, 168582, 385280, 635774, 1454932, 3865506, 7077140, 13911248, 37767640, 80433874, 146256972, 363211496, 873338176, 1637204674, 3569621244, 9024085554, 18468136328, 36852868032, 90530978268
OFFSET
1,1
COMMENTS
Column 7 of A260294
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..0..0..0..0..0..1....1..1..0..0..0..0..0..1..1
..0..0..0..0..1..1..0..0..1....0..0..0..1..1..0..0..0..0
..0..1..1..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0..0....1..0..0..0..0..0..0..1..0
..0..0..0..0..0..1..0..0..1....0..0..0..1..1..0..0..1..0
..0..1..1..0..0..1..0..0..1....0..1..0..0..0..0..0..0..0
CROSSREFS
Sequence in context: A183267 A258231 A257763 * A031567 A031747 A125949
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 22 2015
STATUS
approved