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A183460 Number of (n+4)X7 binary arrays with every 1 having exactly three king-move neighbors equal to 1 but with no 2X2 blocks of 1s 1
2, 11, 32, 69, 498, 1621, 4364, 30246, 103071, 318890, 1969710, 6832816, 23130558, 129897418, 458450153, 1654097198, 8623517185, 30994436542, 117035636551, 575738987147, 2107437728162, 8217863515859, 38636777002143, 143917572927793 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A183465

LINKS

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

EXAMPLE

Some solutions for 9X7

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A190259 A190261 A000755 * A033994 A023659 A094792

Adjacent sequences:  A183457 A183458 A183459 * A183461 A183462 A183463

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 05 2011

STATUS

approved

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Last modified August 21 04:54 EDT 2019. Contains 326162 sequences. (Running on oeis4.)