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A186847 Number of (n+1)X7 binary arrays with no 2X2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum 1
5182, 79778, 1371258, 22982034, 397002882, 6898399878, 119236307198, 2065646009310, 35799060427804, 620100415074980, 10742761367704694, 186117631339287250, 3224333528341874224, 55859428401516527490 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A186850

LINKS

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

EXAMPLE

Some solutions for 3X7

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

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

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

CROSSREFS

Sequence in context: A184000 A247259 A186900 * A185485 A061050 A175745

Adjacent sequences:  A186844 A186845 A186846 * A186848 A186849 A186850

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 27 2011

STATUS

approved

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Last modified May 15 23:51 EDT 2022. Contains 353687 sequences. (Running on oeis4.)