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A260294
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001001
9
48, 104, 104, 274, 201, 274, 560, 544, 544, 560, 966, 1145, 1336, 1145, 966, 2300, 1524, 2966, 2966, 1524, 2300, 4762, 3591, 3764, 5629, 3764, 3591, 4762, 8252, 8550, 8660, 7146, 7146, 8660, 8550, 8252, 17470, 13055, 21028, 19157, 10952, 19157, 21028
OFFSET
1,1
COMMENTS
Table starts
....48...104....274....560....966....2300....4762....8252....17470....38160
...104...201....544...1145...1524....3591....8550...13055....24762....60761
...274...544...1336...2966...3764....8660...21028...33108....60116...153106
...560..1145...2966...5629...7146...19157...45596...64925...134780...364807
...966..1524...3764...7146..10952...29166...62980..101512...225924...560690
..2300..3591...8660..19157..29166...72652..168582..292171...625218..1609460
..4762..8550..21028..45596..62980..168582..385280..635774..1454932..3865506
..8252.13055..33108..64925.101512..292171..635774.1076482..2711612..7110332
.17470.24762..60116.134780.225924..625218.1454932.2711612..6847376.18585578
.38160.60761.153106.364807.560690.1609460.3865506.7110332.18585578.52370322
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 9] for n>10
k=2: [order 10] for n>12
k=3: [order 24] for n>28
k=4: [order 40] for n>44
k=5: [order 72] for n>78
EXAMPLE
Some solutions for n=4 k=4
..1..0..0..0..0..1....1..0..0..0..0..0....0..0..0..0..0..1....1..1..0..0..1..0
..1..1..0..0..1..1....0..0..1..1..0..0....1..0..0..1..1..0....0..1..0..0..0..0
..0..0..0..0..0..0....0..0..0..0..0..1....0..0..0..0..0..0....0..0..0..0..0..0
..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..1..0
..0..1..1..0..0..1....0..1..0..0..1..0....1..1..0..0..1..1....0..1..0..0..1..0
..0..0..0..0..0..0....1..0..0..0..0..1....0..0..0..0..0..0....1..1..0..0..0..0
CROSSREFS
Sequence in context: A260241 A259994 A113797 * A260287 A187931 A191837
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jul 22 2015
STATUS
approved