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A236057 Number of (n+1)X(n+1) 0..2 arrays colored with the difference of the upper median and the minimum in each 2X2 subblock 0
81, 1784, 45987, 1189428, 44476077, 2530095488, 170968375846, 12437483904432, 1633760568071556 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A236065

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A237091 A253306 A237801 * A205910 A236811 A206669

Adjacent sequences:  A236054 A236055 A236056 * A236058 A236059 A236060

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 18 2014

STATUS

approved

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Last modified November 20 05:07 EST 2019. Contains 329323 sequences. (Running on oeis4.)