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A235437
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise
6
81, 583, 583, 3987, 10241, 3987, 26091, 169041, 169041, 26091, 167095, 2616323, 6802225, 2616323, 167095, 1054515, 39122513, 253925273, 253925273, 39122513, 1054515, 6595119, 570624077, 9047860107, 23147332121, 9047860107, 570624077
OFFSET
1,1
COMMENTS
Table starts
.........81...........583............3987.............26091............167095
........583.........10241..........169041...........2616323..........39122513
.......3987........169041.........6802225.........253925273........9047860107
......26091.......2616323.......253925273.......23147332121.....2018613731175
.....167095......39122513......9047860107.....2018613731175...438547192107117
....1054515.....570624077....309625276947...168052583588803.91649890523565335
....6595119....8196586161..10293725576425.13459467429347941
...41000659..116562545251.334790471121909
..253895775.1647270158195
.1568132115
LINKS
FORMULA
Empirical for column k:
k=1: a(n) = 8*a(n-1) -a(n-2) -64*a(n-3) -14*a(n-4) +88*a(n-5) +8*a(n-6) -24*a(n-7)
k=2: [order 39]
EXAMPLE
Some solutions for n=2 k=4
..0..0..1..1..0....0..0..1..2..0....0..0..1..1..2....0..0..0..0..0
..0..0..1..2..1....0..0..1..0..1....0..0..0..1..0....0..0..2..0..2
..2..2..0..2..1....1..2..0..1..1....2..0..1..0..1....0..1..2..0..1
CROSSREFS
Sequence in context: A236082 A235737 A236490 * A235432 A206064 A359607
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 10 2014
STATUS
approved