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A185749 Number of (n+1)X9 binary arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace 1
7528, 1494072, 148782184, 16318664224, 1793861476320, 197100662468008, 21671299631697840, 2382038434840423712, 261857186889698585032, 28785387230187042741928, 3164343356615626181734896 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 8 of A185750

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..50

EXAMPLE

Some solutions for 3X9

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

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

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

CROSSREFS

Sequence in context: A090742 A273382 A186938 * A077096 A031137 A210171

Adjacent sequences:  A185746 A185747 A185748 * A185750 A185751 A185752

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 01 2011

STATUS

approved

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Last modified May 26 21:56 EDT 2022. Contains 354092 sequences. (Running on oeis4.)