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A259954
Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001
1
34, 146, 1603, 22622, 501606, 17818241, 949570630, 77682624194, 9896025788402, 1940408456200141, 584639553275100018, 271649247842334658120, 194639319999547441935265, 214876443861835390451767918
OFFSET
1,1
COMMENTS
Diagonal of A259962
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..0..1..0....0..0..1..0..0..0....0..1..0..0..0..0....0..0..0..0..0..1
..0..1..0..0..0..0....1..0..0..0..1..0....0..0..0..0..0..1....1..0..0..0..1..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..0..0..0..0..0....0..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..0..0..1..0....0..0..0..0..0..0
..0..0..0..1..0..0....1..0..0..1..0..0....0..0..0..0..0..1....0..1..0..0..0..0
CROSSREFS
Sequence in context: A105714 A072319 A031398 * A180759 A159744 A192398
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 10 2015
STATUS
approved