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A183622 T(n,k)=1/120 the number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock containing four distinct values 9
1, 6, 6, 36, 56, 36, 216, 528, 528, 216, 1296, 4992, 7792, 4992, 1296, 7776, 47232, 115760, 115760, 47232, 7776, 46656, 446976, 1724208, 2708848, 1724208, 446976, 46656, 279936, 4230144, 25713200, 63632480, 63632480, 25713200, 4230144, 279936 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

........1..........6............36.............216...............1296

........6.........56...........528............4992..............47232

.......36........528..........7792..........115760............1724208

......216.......4992........115760.........2708848...........63632480

.....1296......47232.......1724208........63632480.........2359936032

.....7776.....446976......25713200......1498220176........87799260864

....46656....4230144.....383674672.....35321033072......3272704747696

...279936...40034304....5726373936....833329037376....122134207285776

..1679616..378888192...85476349744..19669285954672...4561306247863968

.10077696.3585835008.1275953305136.464377424786608.170428892494433936

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..111

EXAMPLE

Some solutions with the first square being 0123 for 4X3

..0..1..0....0..1..4....0..1..4....0..1..4....0..1..4....0..1..4....0..1..0

..2..3..4....2..3..2....2..3..2....2..3..0....2..3..2....2..3..2....2..3..4

..1..0..2....1..0..1....1..0..1....0..4..2....4..0..1....1..4..1....0..1..0

..2..3..4....4..2..4....3..4..3....2..3..1....2..3..4....3..0..2....3..2..3

CROSSREFS

Sequence in context: A056464 A056454 A056452 * A176861 A245131 A038260

Adjacent sequences:  A183619 A183620 A183621 * A183623 A183624 A183625

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 06 2011

STATUS

approved

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Last modified September 17 13:00 EDT 2019. Contains 327131 sequences. (Running on oeis4.)