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A236588 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the upper median minus the minimum of every 2X2 subblock 4
256, 2858, 2858, 31944, 69766, 31944, 358178, 1705350, 1705350, 358178, 4013896, 41837888, 91575854, 41837888, 4013896, 44966244, 1023837022, 4933946082, 4933946082, 1023837022, 44966244, 503819820, 25082040726, 264737751595 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

........256.........2858..........31944.........358178........4013896

.......2858........69766........1705350.......41837888.....1023837022

......31944......1705350.......91575854.....4933946082...264737751595

.....358178.....41837888.....4933946082...585446077352.69070033303330

....4013896...1023837022...264737751595.69070033303330

...44966244..25082040726.14235465951882

..503819820.614719795538

.5645017984

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..39

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 42]

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A236942 A236137 A236134 * A236585 A235818 A235577

Adjacent sequences:  A236585 A236586 A236587 * A236589 A236590 A236591

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Jan 29 2014

STATUS

approved

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Last modified September 23 05:33 EDT 2021. Contains 347609 sequences. (Running on oeis4.)