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A183462
Number of (n+4) X 9 binary arrays with every 1 having exactly three king-move neighbors equal to 1 but with no 2 X 2 blocks of 1's.
1
4, 59, 498, 1577, 8702, 42613, 210362, 1459669, 7676361, 44631710, 307975889, 1766468801, 10941194118, 74842408447, 452000693891, 2882180117494, 19523455903949, 121423010910314, 784247000876085, 5259836130609437
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OFFSET
1,1
COMMENTS
Column 5 of
A183465
.
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..106
EXAMPLE
Some solutions for 7 X 9
..0..0..1..1..0..1..0..0..0....0..0..0..0..0..1..0..0..0
..0..1..1..0..1..1..1..0..0....0..0..0..0..1..1..1..0..0
..1..0..0..0..0..0..0..1..0....0..0..0..1..0..0..0..1..0
..1..1..0..0..0..0..0..1..1....0..0..1..1..0..0..0..1..1
..1..0..0..0..0..1..0..1..0....0..0..0..1..0..1..0..1..0
..0..1..1..0..1..1..1..0..0....0..0..0..0..1..1..1..0..0
CROSSREFS
Cf.
A183465
.
Sequence in context:
A200048
A037066
A113251
*
A093597
A257069
A199107
Adjacent sequences:
A183459
A183460
A183461
*
A183463
A183464
A183465
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Jan 05 2011
STATUS
approved
