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A236502 Number of (n+1)X(2+1) 0..3 arrays colored with the maximum plus the minimum minus the lower median of every 2X2 subblock 1
2632, 54110, 1116232, 23079872, 477377520, 9873995570, 204198122306, 4223027031732, 87339575230936, 1806323755758326, 37357297328973780, 772603063672305092, 15978596275763710970, 330461206445442937362 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A236505

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A254776 A254769 A254722 * A212605 A273184 A252579

Adjacent sequences:  A236499 A236500 A236501 * A236503 A236504 A236505

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 27 2014

STATUS

approved

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Last modified May 18 10:09 EDT 2022. Contains 353807 sequences. (Running on oeis4.)