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A185484 Number of (n+1)X7 binary arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant 1
1832, 73094, 1923780, 59486818, 1723639416, 51354095605, 1513130455943, 44794190542169, 1323525925470463, 39137379574959336, 1156933531645734032, 34204609315029971150, 1011198353006650460242, 29894979888370298618687 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A185487

LINKS

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

EXAMPLE

Some solutions for 3X7

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

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

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

CROSSREFS

Sequence in context: A054813 A320720 A186899 * A133539 A234492 A100970

Adjacent sequences:  A185481 A185482 A185483 * A185485 A185486 A185487

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 28 2011

STATUS

approved

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Last modified December 10 23:15 EST 2019. Contains 329909 sequences. (Running on oeis4.)