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A187727 Number of (n+1)X8 binary arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors 1
10558, 186672, 3588249, 76931991, 1628541369, 35118814718, 755272970945, 16272953514081, 350521453843471, 7551605957045594, 162681410006587121, 3504701107120896836, 75502389868040885049, 1626562602643478820132 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A187729

LINKS

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

EXAMPLE

Some solutions for 3X8

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

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

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

CROSSREFS

Sequence in context: A292703 A065319 A063060 * A025028 A063063 A183600

Adjacent sequences:  A187724 A187725 A187726 * A187728 A187729 A187730

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 13 2011

STATUS

approved

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Last modified February 26 21:58 EST 2020. Contains 332295 sequences. (Running on oeis4.)