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A237483
Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock equal
1
1464, 15898, 180730, 2218016, 27849668, 361041844, 4724446414, 62643477220, 833223795952, 11142212389150, 149131165341728, 2000378927238696, 26837240769664704, 360375444728855618, 4839190850208680986
OFFSET
1,1
COMMENTS
Column 2 of A237488
FORMULA
Empirical recurrence of order 88 (see link above)
EXAMPLE
Some solutions for n=3
..0..1..1....2..0..1....2..3..1....0..3..3....2..1..3....0..0..0....0..1..3
..2..3..0....1..3..2....1..0..1....1..2..1....1..2..0....3..0..3....3..1..0
..1..2..1....0..2..1....2..3..2....2..1..2....2..3..1....3..0..2....0..1..3
..2..1..2....1..3..2....2..1..0....1..2..3....1..2..2....1..0..3....1..3..0
CROSSREFS
Sequence in context: A023074 A164647 A284887 * A280906 A321010 A278368
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 08 2014
STATUS
approved