login
A236130
Number of (n+1)X(1+1) 0..3 arrays colored with the maximum plus the upper median plus the lower median minus the minimum of every 2X2 subblock
1
256, 3184, 39626, 494612, 6174310, 77042610, 961334649, 11996138928, 149695364012, 1867978298572, 23309625772316, 290870232873684, 3629637683704696, 45292593443919928, 565185607861222620
OFFSET
1,1
COMMENTS
Column 1 of A236133
FORMULA
Empirical recurrence of order 50 (see link above)
EXAMPLE
Some solutions for n=3
..1..1....3..2....1..0....0..3....3..3....0..3....0..0....2..3....1..3....0..2
..0..3....0..0....0..0....2..3....1..2....0..1....0..1....2..1....0..1....1..1
..0..0....0..2....3..0....0..2....1..1....0..0....0..3....1..1....0..0....1..1
..3..2....2..3....0..1....1..1....0..3....2..3....3..1....3..3....2..1....2..2
CROSSREFS
Sequence in context: A205037 A236133 A205033 * A236254 A236251 A344304
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 19 2014
STATUS
approved