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A209382 T(n,k)=1/4 the number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having distinct edge sums 8
4, 8, 8, 16, 17, 16, 32, 34, 34, 32, 64, 80, 64, 80, 64, 128, 170, 156, 156, 170, 128, 256, 410, 320, 512, 320, 410, 256, 512, 882, 840, 1076, 1076, 840, 882, 512, 1024, 2138, 1792, 4004, 2176, 4004, 1792, 2138, 1024, 2048, 4610, 4848, 8612, 8648, 8648, 8612 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

...4....8...16....32....64....128.....256......512.....1024......2048

...8...17...34....80...170....410.....882.....2138.....4610.....11186

..16...34...64...156...320....840....1792.....4848....10496.....28704

..32...80..156...512..1076...4004....8612....33716....73028....291908

..64..170..320..1076..2176...8648...18176....78800...168448....758816

.128..410..840..4004..8648..52784..114056...790712..1693448..12487208

.256..882.1792..8612.18176.114056..242176..1784720..3777536..30197792

.512.2138.4848.33716.78800.790712.1784720.22205984.48256784.672951728

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..577

EXAMPLE

Some solutions for n=4 k=3

..0..2..2..1....2..0..2..1....1..2..0..2....0..1..0..2....1..2..2..2

..0..1..0..0....2..1..2..0....0..2..1..2....2..2..0..1....0..0..1..0

..0..2..2..1....0..0..2..1....1..2..0..2....0..1..0..2....1..2..2..2

..0..1..0..0....2..1..2..0....0..2..1..2....2..2..0..1....0..0..1..0

..0..2..2..1....2..0..2..1....1..2..0..2....0..1..0..2....1..2..2..2

CROSSREFS

Sequence in context: A144174 A256816 A098354 * A298119 A089474 A141800

Adjacent sequences:  A209379 A209380 A209381 * A209383 A209384 A209385

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 07 2012

STATUS

approved

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Last modified January 28 14:26 EST 2022. Contains 350656 sequences. (Running on oeis4.)