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A187725 Number of (n+1)X6 binary arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors 1
1173, 11324, 114633, 1252304, 13555195, 148669520, 1628541369, 17862966996, 195900562382, 2148718629188, 23567125294297, 258490212189234, 2835170496330003, 31096710213148897, 341075340251648749 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A187729

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for 3X6

..1..0..1..1..0..0....0..0..1..0..0..0....0..0..0..0..0..1....0..1..0..1..1..0

..1..1..0..1..1..1....0..1..1..0..1..1....1..1..0..1..0..1....1..1..1..0..0..0

..1..1..0..1..1..0....0..0..0..0..0..0....0..0..0..0..0..0....0..1..1..0..1..0

CROSSREFS

Sequence in context: A303107 A302958 A232082 * A269958 A033912 A204763

Adjacent sequences:  A187722 A187723 A187724 * A187726 A187727 A187728

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 13 2011

STATUS

approved

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Last modified February 29 05:25 EST 2020. Contains 332353 sequences. (Running on oeis4.)