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A185991
1/128 the number of (n+2)X9 binary arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace
1
23840, 4038360, 333538097, 32992227496, 3151659956721, 306579200951455, 29671205957160911, 2878184444421565799, 278983544664468587224, 27048807693952318580843, 2622411427147271534732564
OFFSET
1,1
COMMENTS
Column 7 of A185993
LINKS
EXAMPLE
Some solutions for 4X9
..0..0..1..0..0..1..0..0..0....0..0..0..1..1..1..1..0..1
..0..0..0..0..1..1..0..0..0....0..0..0..0..0..1..0..0..1
..0..0..0..0..0..0..0..0..1....0..0..0..0..0..1..0..0..0
..0..0..0..0..0..1..1..1..1....0..0..0..0..0..0..1..0..1
CROSSREFS
Sequence in context: A066234 A332313 A237691 * A251904 A239177 A204359
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 08 2011
STATUS
approved