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A236594 Number of (n+1)X(2+1) 0..3 arrays colored with the maximum plus the lower median minus the upper median of every 2X2 subblock 1
2680, 57496, 1235744, 26588346, 572295072, 12319404000, 265129548124, 5706240369632, 122817349711332, 2643443473118034, 56894619790736934, 1224540570485407616, 26355880439261441384, 567259962727163694680 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A236596

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A252210 A252203 A252202 * A217335 A243993 A157613

Adjacent sequences:  A236591 A236592 A236593 * A236595 A236596 A236597

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 29 2014

STATUS

approved

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Last modified September 24 02:18 EDT 2021. Contains 347617 sequences. (Running on oeis4.)