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A236038 Number of (n+1)X(2+1) 0..3 arrays colored with the difference of the upper median and the lower median in each 2X2 subblock 1
2404, 42264, 722548, 12435076, 215833320, 3742165712, 64753334132, 1120625605524, 19402307063528, 335925911180296, 5815540423521376, 100678169726567032, 1742970553687774724, 30174878799319673848 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A236041

LINKS

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

R. H. Hardin, Empirical recurrence of order 87

FORMULA

Empirical recurrence of order 87 (see link above)

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A251774 A031547 A031727 * A323271 A283783 A260274

Adjacent sequences:  A236035 A236036 A236037 * A236039 A236040 A236041

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 18 2014

STATUS

approved

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Last modified May 23 14:15 EDT 2022. Contains 353975 sequences. (Running on oeis4.)