login
A220579
T(n,k)=Equals one maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 nXk array
13
1, 2, 1, 4, 8, 1, 8, 21, 32, 1, 16, 115, 91, 128, 1, 32, 371, 1441, 375, 512, 1, 64, 1504, 8334, 17505, 1487, 2048, 1, 128, 5240, 64497, 165130, 205323, 5835, 8192, 1, 256, 19904, 436288, 2652007, 3162375, 2352642, 22775, 32768, 1, 512, 71787, 3036588
OFFSET
1,2
COMMENTS
Table starts
.1.......2.......4..........8..........16...........32...........64.........128
.1.......8......21........115.........371.........1504.........5240.......19904
.1......32......91.......1441........8334........64497.......436288.....3036588
.1.....128.....375......17505......165130......2652007.....33180533...450926562
.1.....512....1487.....205323.....3162375....106841503...2449921734.65126683335
.1....2048....5835....2352642....59690533...4239598056.178051989526
.1....8192...22775...26616961..1120269376.166807007000
.1...32768...88683..299065708.20961430054
.1..131072..344975.3347252663
.1..524288.1341395
.1.2097152
.1
LINKS
EXAMPLE
Some solutions for n=3 k=4
..1..1..0..0....0..1..1..1....0..0..0..1....0..0..1..1....1..0..0..1
..0..1..1..1....1..0..0..1....0..0..0..1....1..0..1..0....0..0..0..1
..1..1..0..1....1..0..0..1....1..0..1..1....0..1..0..0....1..1..1..1
CROSSREFS
Column 2 is A004171(n-1)
Row 1 is A000079(n-1)
Sequence in context: A011234 A208917 A161381 * A330787 A128412 A221660
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Dec 16 2012
STATUS
approved