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A237175
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum minus the lower median of every 2X2 subblock equal
7
256, 1696, 1696, 11242, 25384, 11242, 79688, 370670, 370670, 79688, 571176, 5876404, 11560002, 5876404, 571176, 4149488, 93633848, 398902424, 398902424, 93633848, 4149488, 30302376, 1522516754, 13627618416, 30813347734
OFFSET
1,1
COMMENTS
Table starts
......256........1696..........11242.............79688...............571176
.....1696.......25384.........370670...........5876404.............93633848
....11242......370670.......11560002.........398902424..........13627618416
....79688.....5876404......398902424.......30813347734........2332744838828
...571176....93633848....13627618416.....2332744838828......385253068529754
..4149488..1522516754...478901830764...183424213259920....66811807395192508
.30302376.24903561376.16855150746170.14401855281551812.11495860816900333298
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 27]
k=2: [order 75]
EXAMPLE
Some solutions for n=2 k=4
..0..0..2..2..3....0..0..2..0..2....0..0..1..1..1....0..0..1..0..1
..0..1..2..3..2....1..1..2..3..3....1..1..2..0..2....1..0..0..0..0
..1..2..3..2..0....2..1..2..0..2....0..2..1..2..3....0..1..0..1..0
CROSSREFS
Sequence in context: A238065 A237538 A237532 * A237169 A237936 A237931
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Feb 04 2014
STATUS
approved