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A207785
T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 0 1 vertically
10
2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 13, 81, 98, 81, 13, 18, 169, 257, 253, 169, 19, 25, 324, 611, 791, 621, 361, 28, 34, 625, 1326, 2173, 2200, 1575, 784, 41, 46, 1156, 2815, 5241, 6766, 6418, 4000, 1681, 60, 62, 2116, 5718, 12567, 17763, 22322, 19041, 10057, 3600, 88, 83
OFFSET
1,1
COMMENTS
Table starts
..2....4.....6.....9.....13.....18......25......34.......46.......62........83
..4...16....36....81....169....324.....625....1156.....2116.....3844......6889
..6...36....98...257....611...1326....2815....5718....11362....22164.....42507
..9...81...253...791...2173...5241...12567...28101....61397...131083....272789
.13..169...621..2200...6766..17763...46199..110732...257118...582114...1274558
.19..361..1575..6418..22322..65094..185613..486006..1224264..2997835...7098270
.28..784..4000.19041..75557.246087..786907.2283773..6379507.17308075..45325727
.41.1681.10057.55101.246840.887406.3121285.9855231.29800935.87179997.244806537
LINKS
EXAMPLE
Some solutions for n=4 k=3
..1..1..0....1..1..1....1..1..1....1..1..0....1..0..0....0..0..1....0..0..1
..0..0..1....1..1..1....1..1..0....0..0..1....1..0..1....0..0..1....0..1..0
..0..0..1....0..1..0....1..0..0....0..0..1....1..1..1....1..1..1....1..0..0
..1..1..0....0..1..0....1..0..1....1..1..1....1..0..1....1..0..0....1..0..1
CROSSREFS
Column 1 is A000930(n+3)
Column 2 is A207170
Column 3 is A203084(n-2)
Row 1 is A171861(n+1)
Row 2 is A207025
Row 3 is A202371(n-2)
Sequence in context: A207762 A207368 A208013 * A207242 A207500 A208164
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 20 2012
STATUS
approved