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A237941 Number of (n+1)X(4+1) 0..2 arrays with the maximum minus the minimum of every 2X2 subblock equal 1
13893, 946063, 61286941, 4202495253, 287601819479, 19789034062007, 1361783640641509, 93760075445980377, 6455729965264521631, 444524052413011284759, 30608927413972838313369, 2107673147756640534907525 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A237945

LINKS

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

R. H. Hardin, Empirical recurrence of order 54

FORMULA

Empirical recurrence of order 54 (see link above)

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A189989 A069302 A109483 * A343085 A343968 A343969

Adjacent sequences:  A237938 A237939 A237940 * A237942 A237943 A237944

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 16 2014

STATUS

approved

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Last modified August 17 00:01 EDT 2022. Contains 356180 sequences. (Running on oeis4.)