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A205027 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards 9
256, 2338, 2338, 15040, 27611, 15040, 84899, 275853, 275853, 84899, 456043, 3684581, 7148335, 3684581, 456043, 2470216, 56088455, 198539736, 198539736, 56088455, 2470216, 13615376, 888172440, 5296848762, 11646996582, 5296848762 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

......256.........2338..........15040..............84899................456043

.....2338........27611.........275853............3684581..............56088455

....15040.......275853........7148335..........198539736............5296848762

....84899......3684581......198539736........11646996582..........674941613200

...456043.....56088455.....5296848762.......674941613200........69845358912381

..2470216....888172440...139786868632.....42501311863619......8486771114466915

.13615376..14267356381..3650380799573...2691721552273415....932371404894182926

.76027865.230651852383.95296479247095.175740162358914695.109561074506695905962

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..127

EXAMPLE

Some solutions for n=4 k=3

..3..1..0..0....1..2..3..3....0..3..0..3....3..3..1..3....3..2..0..3

..1..0..0..1....2..2..2..2....1..2..0..3....3..1..0..0....2..0..0..1

..2..0..0..2....0..0..0..0....1..0..0..1....3..0..0..3....2..0..0..1

..1..0..0..2....3..0..2..2....2..0..0..3....3..0..0..1....1..0..0..2

..1..0..0..2....2..0..3..3....0..0..0..1....0..0..0..3....0..0..0..3

CROSSREFS

Sequence in context: A014713 A205642 A205635 * A207300 A205020 A204309

Adjacent sequences:  A205024 A205025 A205026 * A205028 A205029 A205030

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 21 2012

STATUS

approved

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Last modified December 9 06:07 EST 2021. Contains 349627 sequences. (Running on oeis4.)