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A236319
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the lower median minus the minimum of every 2X2 subblock
5
256, 2744, 2744, 29670, 61262, 29670, 319908, 1362884, 1362884, 319908, 3455790, 30415198, 62811760, 30415198, 3455790, 37315466, 680489392, 2909136874, 2909136874, 680489392, 37315466, 402944837, 15223905144, 135542325383
OFFSET
1,1
COMMENTS
Table starts
........256.........2744.........29670.........319908........3455790
.......2744........61262.......1362884.......30415198......680489392
......29670......1362884......62811760.....2909136874...135542325383
.....319908.....30415198....2909136874...282120064310.27555967936654
....3455790....680489392..135542325383.27555967936654
...37315466..15223905144.6305164652408
..402944837.340350445264
.4350716716
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 37]
EXAMPLE
Some solutions for n=2 k=4
..0..0..1..3..1....0..0..3..0..1....0..0..1..3..3....0..0..3..0..0
..0..0..1..2..0....0..0..2..2..0....0..0..0..2..0....0..0..3..3..2
..1..1..2..3..3....0..3..1..1..1....0..2..3..2..0....1..2..1..3..1
CROSSREFS
Sequence in context: A235749 A236596 A236593 * A236315 A205422 A205417
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 22 2014
STATUS
approved