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A237154
Number of (n+1)X(4+1) 0..3 arrays with the maximum plus the minimum of every 2X2 subblock equal
1
111900, 16547988, 2178706440, 317411030268, 46125739204336, 6800622630757224, 1004492744125300076, 148720556234507966240, 22032685419605073404900, 3265529158483133171468524, 484070240704634990146069528
OFFSET
1,1
COMMENTS
Column 4 of A237158
FORMULA
Empirical recurrence of order 84 (see link above)
EXAMPLE
Some solutions for n=1
..2..0..0..3..1....0..3..3..3..0....0..2..3..2..0....2..0..1..0..3
..0..3..2..0..2....0..3..0..2..3....3..0..2..0..3....2..3..0..3..3
CROSSREFS
Sequence in context: A203667 A210059 A236892 * A203739 A172699 A180467
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 04 2014
STATUS
approved