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A237310
Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal
1
1352, 12690, 120650, 1218584, 12256598, 126084160, 1291478032, 13373871324, 138091649434, 1434854215354, 14882504925868, 154996997323000, 1612626595334952, 16827299214988940, 175503266154285756
OFFSET
1,1
COMMENTS
Column 2 of A237315
FORMULA
Empirical recurrence of order 99 (see link above)
EXAMPLE
Some solutions for n=3
..0..3..1....2..2..1....1..0..1....1..1..2....3..2..3....0..1..2....1..3..1
..1..0..0....2..3..1....2..3..2....3..1..3....2..2..2....1..2..0....3..1..3
..2..2..3....0..0..0....3..1..2....0..0..0....3..2..1....0..1..2....0..0..0
..2..3..2....3..2..3....0..3..0....1..3..1....0..0..2....2..2..2....3..3..3
CROSSREFS
Sequence in context: A349070 A035889 A192320 * A035763 A107559 A056103
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 06 2014
STATUS
approved