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A236251
Number of (n+1)X(1+1) 0..3 arrays colored with the maximum plus the upper median plus the lower median of every 2X2 subblock
1
256, 3208, 40120, 505708, 6373768, 80221804, 1009767552, 12713539468, 160066410336, 2015160447836, 25370112054552, 319404088858652, 4021218129810712, 50625997233104140, 637367333451485952
OFFSET
1,1
COMMENTS
Column 1 of A236254
FORMULA
Empirical recurrence of order 48 (see link above)
EXAMPLE
Some solutions for n=3
..3..0....3..2....3..3....3..1....3..1....0..3....0..0....1..1....2..1....2..1
..1..3....0..2....0..2....3..0....0..2....1..1....3..3....1..1....2..0....2..1
..0..1....0..1....2..3....3..2....3..0....0..1....1..1....2..0....3..2....3..1
..0..3....3..1....2..3....0..2....0..1....2..2....1..2....2..1....0..3....1..3
CROSSREFS
Sequence in context: A205033 A236130 A236254 * A344304 A070056 A185575
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 21 2014
STATUS
approved