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A187964 T(n,k)=Half the number of (n+2)X(k+2) binary arrays with no 3X3 subblock having a sum equal to any horizontal or vertical neighbor 3X3 subblock sum 10
256, 1408, 1408, 7744, 8768, 7744, 42592, 53728, 53728, 42592, 240064, 322128, 359488, 322128, 240064, 1353088, 2092928, 2292560, 2292560, 2092928, 1353088, 7626496, 13520976, 16890700, 15189800, 16890700, 13520976, 7626496, 42683776 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

........256.......1408.......7744......42592......240064.....1353088

.......1408.......8768......53728.....322128.....2092928....13520976

.......7744......53728.....359488....2292560....16890700...122812784

......42592.....322128....2292560...15189800...124421880...993918272

.....240064....2092928...16890700..124421880..1218772461.11568061339

....1353088...13520976..122812784..993918272.11568061339

....7626496...86157696..860108472.7359939574

...42683776..548059536.6116839902

..238891456.3471855360

.1337021536

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..60

EXAMPLE

Some solutions for 5X4 with a(1,1)=0

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

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

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

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

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

CROSSREFS

Sequence in context: A237315 A237309 A188865 * A187956 A237225 A237219

Adjacent sequences: A187961 A187962 A187963 * A187965 A187966 A187967

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 16 2011

STATUS

approved

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Last modified January 28 14:10 EST 2023. Contains 359895 sequences. (Running on oeis4.)