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A183262
T(n,k)=Number of nXk binary arrays with the number of 0-1 adjacencies equal to the number of 0-0 adjacencies
9
2, 1, 1, 3, 5, 3, 3, 5, 5, 3, 7, 22, 39, 22, 7, 8, 59, 157, 157, 59, 8, 17, 220, 1074, 1899, 1074, 220, 17, 26, 696, 6851, 23285, 23285, 6851, 696, 26, 55, 2461, 44684, 284314, 526941, 284314, 44684, 2461, 55, 89, 8369, 295255, 3534109, 12358457, 12358457
OFFSET
1,1
COMMENTS
Table starts
..2.....1........3..........3.............7................8
..1.....5........5.........22............59..............220
..3.....5.......39........157..........1074.............6851
..3....22......157.......1899.........23285...........284314
..7....59.....1074......23285........526941.........12358457
..8...220.....6851.....284314......12358457........553836104
.17...696....44684....3534109.....294747516......25285926227
.26..2461...295255...44666147....7119707510....1169152157882
.55..8369..1966032..568723429..173610143327...54566287853953
.89.29428.13171478.7296845360.4263303128795.2565099972100788
LINKS
EXAMPLE
Some solutions for 4X6
..1..1..0..0..0..1....0..1..1..0..0..0....0..1..0..0..0..1....0..0..0..0..1..0
..0..0..0..0..0..1....1..1..1..0..0..1....0..0..1..0..0..0....0..0..0..0..0..0
..1..0..1..0..0..0....1..0..0..0..0..1....1..0..0..0..0..0....1..0..1..1..1..0
..0..0..0..1..0..1....0..0..0..1..1..1....1..0..1..1..0..1....1..0..1..0..0..1
CROSSREFS
Sequence in context: A058732 A060082 A102225 * A287030 A187066 A187065
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 03 2011
STATUS
approved