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A188311 T(n,k)=Number of (n+1)X(k+1) binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums 9
0, 24, 24, 36, 128, 36, 160, 664, 664, 160, 380, 3036, 3784, 3036, 380, 1332, 14832, 30096, 30096, 14832, 1332, 3616, 71888, 203584, 321696, 203584, 71888, 3616, 11828, 348728, 1514522, 3415196, 3415196, 1514522, 348728, 11828, 33764, 1694376 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

......0.......24.........36.........160..........380.........1332.........3616

.....24......128........664........3036........14832........71888.......348728

.....36......664.......3784.......30096.......203584......1514522.....10660334

....160.....3036......30096......321696......3415196.....37040856....396560236

....380....14832.....203584.....3415196.....53468700....878907878..14070003616

...1332....71888....1514522....37040856....878907878..21615769428.520845610752

...3616...348728...10660334...396560236..14070003616.520845610752

..11828..1694376...77627954..4280848766.228625683370

..33764..8227500..553295656.45974525280

.107240.39976476.3999339740

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..83

EXAMPLE

Some solutions for 4X3

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

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

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

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

CROSSREFS

Column 1 is A185489

Sequence in context: A235249 A115028 A099543 * A185497 A186939 A185750

Adjacent sequences:  A188308 A188309 A188310 * A188312 A188313 A188314

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 27 2011

STATUS

approved

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Last modified May 28 13:05 EDT 2022. Contains 354115 sequences. (Running on oeis4.)