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A183809 1/16 the number of (n+1)X8 binary arrays with no 2X2 subblock being a reflection across the shared element pair of any horizontal or vertical neighbor 1
729, 18567, 418925, 10494847, 249227639, 6153770375, 148654946039, 3645190453457, 88602958444787, 2166253373649057, 52777731056211077, 1288799761305039781, 31427943533967865959, 767074334899635021939 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A183811
LINKS
EXAMPLE
Some solutions with upper left block zero for 3X8
..0..0..0..0..0..1..1..0....0..0..1..1..0..0..0..0....0..0..0..1..0..0..0..1
..0..0..1..1..0..1..0..1....0..0..1..0..1..0..0..1....0..0..1..0..0..0..1..1
..1..1..1..1..0..0..1..1....1..1..1..0..0..1..1..1....1..0..1..1..1..0..1..0
CROSSREFS
Sequence in context: A017631 A209508 A016758 * A224004 A232028 A203651
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 07 2011
STATUS
approved

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Last modified April 22 18:29 EDT 2024. Contains 371906 sequences. (Running on oeis4.)