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A260500
Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001011
1
3446, 4393, 11450, 22405, 30590, 67993, 155232, 238047, 464696, 1101861, 1918174, 3455378, 7911060, 15278603, 27003724, 57946329, 118720366, 215170020, 434883634, 908857723, 1710433300, 3334349545, 6924650180, 13468317384
OFFSET
1,1
COMMENTS
Column 7 of A260501
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..1..0..0..0..0..0....0..1..0..0..1..1..0..0..1
..0..0..0..1..0..0..1..0..0....0..0..0..0..0..0..0..0..0
..1..0..0..0..0..0..1..0..0....0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0..0....1..1..0..0..1..0..0..1..1
..0..0..0..1..0..0..0..0..0....0..0..0..0..1..0..0..0..0
..1..0..0..1..0..1..1..0..0....1..0..0..0..0..0..0..0..0
CROSSREFS
Sequence in context: A324680 A273341 A107537 * A202644 A218830 A210626
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 27 2015
STATUS
approved