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A236039 Number of (n+1)X(3+1) 0..3 arrays colored with the difference of the upper median and the lower median in each 2X2 subblock 1
22994, 722548, 21941716, 674450852, 21249328546, 666177945884, 20813642966424, 650407055609728, 20348081454134646, 636390439260580516, 19903702034433079606, 622402548889527677804, 19466736969904144671602 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A236041

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=1

..2..3..0..0....1..1..1..2....2..2..3..1....0..3..2..0....3..2..0..3

..0..3..0..0....2..2..1..2....2..0..3..0....3..3..1..1....2..1..2..0

CROSSREFS

Sequence in context: A254910 A254903 A257205 * A116062 A235778 A235558

Adjacent sequences:  A236036 A236037 A236038 * A236040 A236041 A236042

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 18 2014

STATUS

approved

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Last modified July 6 15:57 EDT 2022. Contains 355111 sequences. (Running on oeis4.)