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A260240
Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001001
0
48, 213, 1476, 5733, 38280, 416911, 1606456, 7479479, 103497076, 746247122, 2383760912, 25616797423, 351265905756, 1400540744283
OFFSET
1,1
COMMENTS
Diagonal of A260248
EXAMPLE
Some solutions for n=4
..0..1..0..0..0..1....0..1..0..0..0..0....0..1..0..0..0..1....1..0..0..0..0..1
..0..0..0..0..0..0....0..0..0..0..1..0....0..0..0..0..1..0....0..1..0..0..1..0
..0..0..1..0..0..1....0..0..0..0..0..1....0..0..0..0..0..0....0..0..0..0..0..1
..0..0..0..1..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..1..0..0..1....0..0..1..0..0..1....0..0..1..0..0..0
..1..0..1..0..0..0....0..0..0..0..1..0....0..0..0..0..0..0....0..0..0..1..0..1
CROSSREFS
Sequence in context: A260098 A260286 A183683 * A260062 A364922 A235759
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 20 2015
STATUS
approved