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A185991 1/128 the number of (n+2)X9 binary arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace 1
23840, 4038360, 333538097, 32992227496, 3151659956721, 306579200951455, 29671205957160911, 2878184444421565799, 278983544664468587224, 27048807693952318580843, 2622411427147271534732564 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A185993

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..61

EXAMPLE

Some solutions for 4X9

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

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

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

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

CROSSREFS

Sequence in context: A066234 A332313 A237691 * A251904 A239177 A204359

Adjacent sequences:  A185988 A185989 A185990 * A185992 A185993 A185994

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 08 2011

STATUS

approved

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Last modified January 26 23:54 EST 2022. Contains 350601 sequences. (Running on oeis4.)