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A185989 1/128 the number of (n+2)X7 binary arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace 1
876, 52966, 1739442, 64582504, 2340935640, 86146689788, 3151659956721, 115518814872268, 4232611015536753, 155094173345238861, 5682960561169751651, 208236239201648689372, 7630223129025671000970, 279587941557596275909471 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A185993

LINKS

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

EXAMPLE

Some solutions for 4X7

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

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

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

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

CROSSREFS

Sequence in context: A065700 A297511 A297725 * A190930 A209743 A346900

Adjacent sequences:  A185986 A185987 A185988 * A185990 A185991 A185992

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 08 2011

STATUS

approved

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Last modified January 26 09:35 EST 2022. Contains 350598 sequences. (Running on oeis4.)