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A236804 Number of (n+1)X(3+1) 0..2 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock equal 3
1033, 8825, 85929, 929447, 9558409, 107087939, 1117775361, 12821027315, 135199336873, 1580326999835, 16792477473969, 199287485892947, 2129881236360889, 25583932979862059, 274630528704260481 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A236809

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

FORMULA

Empirical: a(n) = 24*a(n-1) -55*a(n-2) -2772*a(n-3) +26568*a(n-4) -71616*a(n-5) -74996*a(n-6) +644112*a(n-7) -762032*a(n-8) -588288*a(n-9) +1612416*a(n-10) -783360*a(n-11)

EXAMPLE

Some solutions for n=3

..2..2..1..1....0..0..0..2....0..1..2..1....2..0..1..0....2..1..2..2

..2..1..1..0....0..1..0..1....0..2..2..0....1..0..2..0....0..2..2..1

..1..1..0..0....0..0..2..0....1..0..1..2....1..1..0..1....1..2..1..1

..1..0..0..1....2..1..0..1....0..2..0..2....1..2..2..0....1..1..1..0

CROSSREFS

Sequence in context: A282576 A122716 A031609 * A023063 A245680 A241787

Adjacent sequences:  A236801 A236802 A236803 * A236805 A236806 A236807

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 31 2014

STATUS

approved

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Last modified June 17 15:38 EDT 2021. Contains 345085 sequences. (Running on oeis4.)