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A237311
Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock equal
1
7398, 120650, 1928204, 33313192, 564748168, 9923274434, 171975075815, 3048207305436, 53496852362572, 954253356186506, 16899638107089319, 303052582868946042, 5405825916182428737, 97385557953332387791
OFFSET
1,1
COMMENTS
Column 3 of A237315
LINKS
EXAMPLE
Some solutions for n=2
..3..0..0..3....0..1..2..2....2..0..1..2....2..1..2..3....2..2..1..0
..3..0..3..0....2..3..3..1....1..1..2..2....3..3..3..3....1..3..3..2
..1..0..3..0....3..1..0..3....1..3..1..2....3..2..1..2....2..0..1..0
CROSSREFS
Sequence in context: A364182 A034279 A031584 * A023940 A116195 A249878
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 06 2014
STATUS
approved