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A235928
Number of (n+1)X(3+1) 0..3 arrays with the minimum plus the maximum unequal to the lower median plus the upper median in every 2X2 subblock
1
18992, 1490648, 116219056, 9098402456, 710992703856, 55608647673784, 4347481602940704, 339955485269085344, 26580462272923519792, 2078379029608032830656, 162508519734907950288096
OFFSET
1,1
COMMENTS
Column 3 of A235932
FORMULA
Empirical recurrence of order 70 (see link above)
EXAMPLE
Some solutions for n=1
..3..3..0..3....2..3..2..0....0..1..2..0....0..3..2..3....0..0..3..0
..2..0..0..2....1..3..0..3....0..2..0..1....0..2..2..2....2..0..2..2
CROSSREFS
Sequence in context: A252885 A232576 A339962 * A031643 A261748 A089522
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 17 2014
STATUS
approved