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A220287 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 vertical neighbors in a random 0..1 nXk array 5
1, 2, 2, 4, 4, 4, 8, 31, 31, 8, 16, 96, 139, 96, 16, 32, 424, 1411, 1411, 424, 32, 64, 1422, 9430, 15382, 9430, 1422, 64, 128, 5504, 63154, 232795, 232795, 63154, 5504, 128, 256, 19606, 452515, 3061937, 5691450, 3061937, 452515, 19606, 256, 512, 73294, 3130768 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

...1.....2.......4........8........16........32.......64.......128......256

...2.....4......31.......96.......424......1422.....5504.....19606....73294

...4....31.....139.....1411......9430.....63154...452515...3130768.21630714

...8....96....1411....15382....232795...3061937.40463019.533004621

..16...424....9430...232795...5691450.147661377

..32..1422...63154..3061937.147661377

..64..5504..452515.40463019

.128.19606.3130768

.256.73294

.512

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..59

EXAMPLE

Some solutions for n=3 k=4

..0..1..0..1....0..1..1..0....0..1..0..1....0..0..0..0....1..0..0..0

..1..1..0..0....1..0..0..1....1..0..1..0....0..0..0..0....0..0..0..1

..1..1..1..1....1..1..0..1....0..0..1..0....1..0..0..1....1..0..0..1

CROSSREFS

Sequence in context: A316883 A317611 A220461 * A320195 A129163 A083549

Adjacent sequences:  A220284 A220285 A220286 * A220288 A220289 A220290

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Dec 09 2012

STATUS

approved

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Last modified December 1 10:03 EST 2021. Contains 349426 sequences. (Running on oeis4.)