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A260286
Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001001
0
48, 201, 1336, 5629, 10952, 72652, 385280, 1076482, 6847376, 52370322, 193796536, 1164631962, 12219797584, 66126528758, 352038007240, 4424875060216
OFFSET
1,1
COMMENTS
Diagonal of A260294
EXAMPLE
Some solutions for n=4
..1..0..0..0..0..1....1..0..0..0..0..1....1..0..0..0..1..1....0..1..0..0..1..0
..0..0..1..1..0..0....0..1..0..0..1..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..1..0....0..0..1..0..0..1
..1..0..0..1..1..0....1..1..0..0..0..0....1..1..0..0..1..0....0..0..1..0..0..1
..1..0..0..0..0..0....0..0..0..0..1..0....0..0..0..0..0..0....0..0..0..0..0..0
CROSSREFS
Sequence in context: A072254 A290350 A260098 * A183683 A260240 A260062
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 22 2015
STATUS
approved