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A237294 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock equal 1
1128, 7544, 56752, 471588, 4167736, 38817072, 375021656, 3729166264, 37856371660, 390487433404, 4075963878136, 42940176794836, 455574781777652, 4860153197230628, 52070924104772852, 559748945641992408 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A237299

LINKS

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

R. H. Hardin, Empirical recurrence of order 53

FORMULA

Empirical recurrence of order 53 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A203830 A252299 A203063 * A307174 A278732 A278434

Adjacent sequences:  A237291 A237292 A237293 * A237295 A237296 A237297

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 06 2014

STATUS

approved

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Last modified June 7 02:48 EDT 2020. Contains 334836 sequences. (Running on oeis4.)