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A183474 T(n,k)=Number of nXk binary arrays with every element equal to either the sum mod 2 of its vertical neighbors or the sum mod 2 of its horizontal neighbors 9
1, 2, 2, 3, 6, 3, 4, 12, 12, 4, 6, 28, 33, 28, 6, 9, 68, 111, 111, 68, 9, 13, 156, 374, 550, 374, 156, 13, 19, 368, 1205, 2769, 2769, 1205, 368, 19, 28, 872, 4003, 13338, 21280, 13338, 4003, 872, 28, 41, 2048, 13229, 66012, 153291, 153291, 66012, 13229, 2048, 41, 60 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

..1....2......3.......4.........6...........9............13.............19

..2....6.....12......28........68.........156...........368............872

..3...12.....33.....111.......374........1205..........4003..........13229

..4...28....111.....550......2769.......13338.........66012.........326010

..6...68....374....2769.....21280......153291.......1140298........8501730

..9..156...1205...13338....153291.....1625205......17932076......198519483

.13..368...4003...66012...1140298....17932076.....295884064.....4899909637

.19..872..13229..326010...8501730...198519483....4899909637...121507526212

.28.2048..43561.1605094..63020066..2180670106...80382466165..2979497367017

.41.4832.143984.7924940.468581721.24048268539.1325242681656.73489774062359

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..241

EXAMPLE

Some solutions for 5X4

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

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

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

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

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

CROSSREFS

Column 1 is A000930(n+1)

Sequence in context: A125102 A003506 A047662 * A294034 A210220 A075196

Adjacent sequences:  A183471 A183472 A183473 * A183475 A183476 A183477

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 05 2011

STATUS

approved

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Last modified August 24 14:30 EDT 2019. Contains 326285 sequences. (Running on oeis4.)