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Revision History for A222290

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T(n,k)=Number of nXk 0..1 arrays with exactly floor(nXk/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order
(history; published version)

#4 by R. H. Hardin at Thu Feb 14 20:29:13 EST 2013

STATUS

editing

approved

#3 by R. H. Hardin at Thu Feb 14 20:29:09 EST 2013

LINKS

R. H. Hardin, <a href="/A222290/b222290.txt">Table of n, a(n) for n = 1..161</a>

#2 by R. H. Hardin at Thu Feb 14 20:28:55 EST 2013

NAME

allocated for R. H. Hardin

T(n,k)=Number of nXk 0..1 arrays with exactly floor(nXk/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order

DATA

1, 0, 0, 0, 0, 0, 3, 4, 4, 3, 4, 11, 4, 11, 4, 4, 8, 35, 35, 8, 4, 5, 44, 83, 208, 83, 44, 5, 20, 144, 532, 1125, 1125, 532, 144, 20, 27, 352, 1427, 6619, 6582, 6619, 1427, 352, 27, 48, 692, 8540, 40321, 89852, 89852, 40321, 8540, 692, 48, 63, 2488, 23798, 250681

OFFSET

1,7

COMMENTS

Table starts

...1.....0.......0.........3...........4..............4..............5

...0.....0.......4........11...........8.............44............144

...0.....4.......4........35..........83............532...........1427

...3....11......35.......208........1125...........6619..........40321

...4.....8......83......1125........6582..........89852.........564838

...4....44.....532......6619.......89852........1249354.......17801910

...5...144....1427.....40321......564838.......17801910......262048125

..20...352....8540....250681.....7879795......256986006.....8550246097

..27...692...23798...1569385....50958999.....3744123550...129184703815

..48..2488..143594...9860229...723447048....55066210090..4294346570524

..63..6476..405187..62350467..4750196831...815041154350.66002018148195

.175.17095.2455279.395971584.67994171066.12128319606229

EXAMPLE

Some solutions for n=4 k=4

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

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

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

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

KEYWORD

allocated

nonn,tabl

AUTHOR

R. H. Hardin Feb 14 2013

STATUS

approved

editing

#1 by R. H. Hardin at Thu Feb 14 20:22:05 EST 2013

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved