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A236806
Number of (n+1)X(5+1) 0..2 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock equal
1
17481, 410305, 9558409, 270610375, 6612746409, 203606804707, 5094225962785, 167431587932179, 4238424064205001, 146743496294875195, 3736375181313140689, 134871797219330857075, 3444806969589767397849, 128484283442135059854667
OFFSET
1,1
COMMENTS
Column 5 of A236809
LINKS
FORMULA
Empirical: a(n) = 6*a(n-1) +2037*a(n-2) -12282*a(n-3) -1251404*a(n-4) +7631304*a(n-5) +222376028*a(n-6) -1410692088*a(n-7) +774758880*a(n-8) +9534803520*a(n-9) -17365107200*a(n-10) -5340748800*a(n-11) +29872128000*a(n-12) -16293888000*a(n-13)
EXAMPLE
Some solutions for n=1
..0..2..2..1..0..1....2..2..1..2..2..2....1..1..2..2..2..2....2..0..1..1..2..2
..0..1..2..2..2..0....1..2..0..0..1..2....1..0..0..1..2..1....0..1..1..0..2..1
CROSSREFS
Sequence in context: A043850 A043866 A043875 * A048256 A303996 A251641
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 31 2014
STATUS
approved