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A235906 Number of (n+1)X(3+1) 0..2 arrays with the minimum plus the maximum unequal to the lower median plus the upper median in every 2X2 subblock 1
1408, 26408, 499136, 9533120, 181855488, 3481713664, 66562286592, 1274524104704, 24381793964032, 466787561906176, 8931943648346112, 170980467157925888, 3272077297963827200, 62631436553438232576 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A235911

LINKS

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

FORMULA

Empirical: a(n) = 6*a(n-1) +396*a(n-2) -1048*a(n-3) -38944*a(n-4) +61312*a(n-5) +1096192*a(n-6) -877056*a(n-7) -1101824*a(n-8) +851968*a(n-9)

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A045127 A210786 A187957 * A204745 A204741 A237742

Adjacent sequences:  A235903 A235904 A235905 * A235907 A235908 A235909

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 16 2014

STATUS

approved

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Last modified January 19 22:12 EST 2022. Contains 350466 sequences. (Running on oeis4.)