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A235582 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise 4
256, 2896, 2896, 29902, 100653, 29902, 283672, 3187679, 3187679, 283672, 2573798, 88558785, 344369103, 88558785, 2573798, 22515040, 2266703217, 32581688349, 32581688349, 2266703217, 22515040, 192101098, 53743314489, 2793785197645 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
........256..........2896...........29902...........283672..........2573798
.......2896........100653.........3187679.........88558785.......2266703217
......29902.......3187679.......344369103......32581688349....2793785197645
.....283672......88558785.....32581688349...11225929365891.3554451567473769
....2573798....2266703217...2793785197645.3554451567473769
...22515040...53743314489.214261916260111
..192101098.1204872525582
.1606970816
LINKS
FORMULA
Empirical for column 1: [linear recurrence of order 29]
EXAMPLE
Some solutions for n=2 k=4
..0..0..1..1..2....0..0..1..1..3....0..0..0..3..2....0..0..0..3..2
..0..0..0..1..0....0..0..0..1..0....0..0..1..1..2....0..0..0..1..2
..0..0..1..0..3....0..1..1..3..1....0..0..3..2..2....0..0..0..2..3
CROSSREFS
Sequence in context: A235577 A235574 A235824 * A236657 A235579 A236654
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 12 2014
STATUS
approved

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Last modified February 24 22:04 EST 2024. Contains 370307 sequences. (Running on oeis4.)