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A187959 Half the number of (n+2)X6 binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum 1
42592, 322128, 2292560, 15189800, 124421880, 993918272, 7359939574, 57445906202, 440377678798, 3253135013018, 25486986699010, 197366974577896, 1485391626845718, 11512660838008050, 88561258735158018, 669899830762918568 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A187964

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..21

EXAMPLE

Some solutions for 4X6 with a(1,1)=0

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

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

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

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

CROSSREFS

Sequence in context: A062694 A210264 A251245 * A253521 A254419 A254426

Adjacent sequences:  A187956 A187957 A187958 * A187960 A187961 A187962

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 16 2011

STATUS

approved

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Last modified August 23 11:24 EDT 2019. Contains 326222 sequences. (Running on oeis4.)