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A235430 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise 5
256, 3038, 3038, 33610, 112442, 33610, 344668, 3874844, 3874844, 344668, 3402366, 119751976, 439379938, 119751976, 3402366, 32542312, 3475660106, 44578500538, 44578500538, 3475660106, 32542312, 304784986, 95292647278, 4199042223300 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
........256..........3038...........33610...........344668..........3402366
.......3038........112442.........3874844........119751976.......3475660106
......33610.......3874844.......439379938......44578500538....4199042223300
.....344668.....119751976.....44578500538...15581843596522.5142104597554476
....3402366....3475660106...4199042223300.5142104597554476
...32542312...95292647278.363811777078888
..304784986.2512120106496
.2807381170
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 12]
EXAMPLE
Some solutions for n=2 k=4
..0..0..1..3..3....0..0..1..0..0....0..0..1..2..0....0..0..1..1..3
..0..0..3..0..3....0..0..0..2..2....0..0..0..0..2....0..0..0..0..3
..0..0..3..0..3....0..0..2..3..0....0..1..1..3..1....0..0..2..1..0
CROSSREFS
Sequence in context: A205935 A205928 A235665 * A235426 A236299 A236296
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 10 2014
STATUS
approved

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Last modified May 24 16:32 EDT 2024. Contains 372781 sequences. (Running on oeis4.)