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A202636 T(n,k)=Number of nXk 0..3 arrays with adjacent row and column sums unequal 6
4, 12, 12, 36, 184, 36, 108, 2428, 2428, 108, 324, 32676, 143028, 32676, 324, 972, 443100, 8196796, 8196796, 443100, 972, 2916, 5967248, 464590190, 1960824272, 464590190, 5967248, 2916, 8748, 80018540, 26143599304, 459796683544 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.....4.........12............36.............108.............324.............972

....12........184..........2428...........32676..........443100.........5967248

....36.......2428........143028.........8196796.......464590190.....26143599304

...108......32676.......8196796......1960824272....459796683544.106682611433736

...324.....443100.....464590190....459796683544.443471777729100

...972....5967248...26143599304.106682611433736

..2916...80018540.1464347535012

..8748.1071819720

.26244

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..49

EXAMPLE

Some solutions for n=3 k=3

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

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

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

CROSSREFS

Sequence in context: A261695 A209047 A209019 * A239194 A009115 A051434

Adjacent sequences:  A202633 A202634 A202635 * A202637 A202638 A202639

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Dec 21 2011

STATUS

approved

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Last modified December 6 16:24 EST 2019. Contains 329808 sequences. (Running on oeis4.)