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A267974
T(n,k)=Number of nXk 0..3 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
9
4, 16, 16, 64, 256, 60, 250, 4096, 3600, 222, 964, 62500, 216000, 49284, 804, 3674, 929296, 12067722, 10941048, 646416, 2872, 13868, 13498276, 648144348, 2208460532, 519718464, 8248384, 10132, 51917, 192321424, 33600202086
OFFSET
1,1
COMMENTS
Table starts
......4..........16.............64..............250................964
.....16.........256...........4096............62500.............929296
.....60........3600.........216000.........12067722..........648144348
....222.......49284.......10941048.......2208460532.......422888259007
....804......646416......519718464.....370962601314....247835569655956
...2872.....8248384....23689358848...58977586280183.135605581008614210
..10132...102657424..1040125019968.8920181825287255
..35383..1251956689.44297983526887
.122480.15001350400
.420752
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 8]
k=2: [order 21]
k=3: [order 40]
Empirical for row n:
n=1: [linear recurrence of order 8]
n=2: [order 21]
EXAMPLE
Some solutions for n=2 k=4
..2..3..1..0....1..3..0..0....0..0..2..0....3..0..2..2....1..0..3..2
..3..0..3..2....3..0..3..0....2..2..2..0....2..1..2..0....0..0..1..0
CROSSREFS
Column 1 is A267928.
Column 2 is A267929.
Sequence in context: A339570 A223071 A232431 * A267997 A229105 A223585
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 23 2016
STATUS
approved