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A235441
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with 2X2 subblock sums lexicographically nondecreasing rowwise and nonincreasing columnwise
4
81, 450, 450, 2500, 5295, 2500, 11100, 65497, 65497, 11100, 49284, 606279, 1762344, 606279, 49284, 192474, 5672018, 37115629, 37115629, 5672018, 192474, 751689, 42941705, 785712765, 1957598978, 785712765, 42941705, 751689, 2707641
OFFSET
1,1
COMMENTS
Table starts
.......81.........450..........2500...........11100............49284
......450........5295.........65497..........606279..........5672018
.....2500.......65497.......1762344........37115629........785712765
....11100......606279......37115629......1957598978.....105025440136
....49284.....5672018.....785712765....105025440136...14016254732529
...192474....42941705...13504013024...4689618011086.1644246638168226
...751689...326261718..235332193767.213149442840795
..2707641..2114123393.3433774399772
..9753129.13717203464
.33291180
LINKS
EXAMPLE
Some solutions for n=2 k=4
..2..0..0..0..0....1..1..0..2..0....1..0..0..1..0....0..0..0..0..0
..2..1..2..0..0....1..1..0..0..0....2..2..1..1..1....1..2..0..0..0
..0..2..2..0..1....0..2..2..1..0....1..0..1..1..0....2..1..0..1..0
CROSSREFS
Column 1 is A204223
Sequence in context: A253749 A253375 A204230 * A235406 A253742 A204223
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jan 10 2014
STATUS
approved