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A220537
T(n,k)=Equals one maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 nXk array
8
1, 2, 1, 4, 4, 1, 8, 5, 31, 1, 16, 25, 55, 96, 1, 32, 55, 625, 322, 424, 1, 64, 166, 2555, 6620, 1802, 1422, 1, 128, 446, 17935, 42066, 67729, 9888, 5504, 1, 256, 1240, 90171, 541829, 725639, 686206, 54152, 19606, 1, 512, 3377, 544856, 4737799, 17238287, 12862187
OFFSET
1,2
COMMENTS
Table starts
.1......2.......4........8........16........32........64........128.......256
.1......4.......5.......25........55.......166.......446.......1240......3377
.1.....31......55......625......2555.....17935.....90171.....544856...2962859
.1.....96.....322.....6620.....42066....541829...4737799...50261056.476949627
.1....424....1802....67729....725639..17238287.258266532.4856316157
.1...1422....9888...686206..12862187.551607872
.1...5504...54152..7024942.225799586
.1..19606..296677.72007269
.1..73294.1626316
.1.266630
.1
LINKS
EXAMPLE
Some solutions for n=3 k=4
..1..0..1..0....1..0..0..1....1..1..0..1....0..1..1..0....0..0..0..1
..1..0..0..1....1..0..0..1....0..0..0..0....1..1..0..0....0..0..0..1
..0..0..0..1....0..0..0..0....0..0..1..0....1..0..1..0....0..1..0..0
CROSSREFS
Column 2 is A220283
Row 1 is A000079(n-1)
Sequence in context: A210235 A138177 A101559 * A229717 A122438 A350122
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Dec 15 2012
STATUS
approved