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A185747 Number of (n+1)X7 binary arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace 1
1000, 62112, 2237680, 86568360, 3364965408, 130602553784, 5075186680192, 197100662468008, 7655862674452520, 297368484380040776, 11550455726950210912, 448643489297533349952, 17426238812878704288568 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A185750

LINKS

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

EXAMPLE

Some solutions for 3X7

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

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

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

CROSSREFS

Sequence in context: A250449 A117690 A186936 * A234787 A029799 A029779

Adjacent sequences:  A185744 A185745 A185746 * A185748 A185749 A185750

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 01 2011

STATUS

approved

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Last modified December 2 22:46 EST 2021. Contains 349445 sequences. (Running on oeis4.)