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A187958 Half the number of (n+2)X5 binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum 1
7744, 53728, 359488, 2292560, 16890700, 122812784, 860108472, 6116839902, 43092481644, 298860635764, 2133759439896, 15149745081538, 106412240118540, 754706717902846, 5335690343354458, 37525816010840830, 265952713606425686 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A187964

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..162

EXAMPLE

Some solutions for 4X5 with a(1,1)=0

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

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

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

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

CROSSREFS

Sequence in context: A116239 A094400 A116282 * A052050 A116064 A052070

Adjacent sequences:  A187955 A187956 A187957 * A187959 A187960 A187961

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 16 2011

STATUS

approved

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Last modified August 7 17:44 EDT 2020. Contains 336278 sequences. (Running on oeis4.)