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A204351 T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..3 introduced in row major order 9
9672, 540324, 540324, 30378276, 109655775, 30378276, 1708802980, 22275534255, 22275534255, 1708802980, 96125591660, 4524628081600, 16256855591536, 4524628081600, 96125591660, 5407387617220, 919046909794048 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
..............9672.................540324.....................30378276
............540324..............109655775..................22275534255
..........30378276............22275534255...............16256855591536
........1708802980..........4524628081600............11860456910608960
.......96125591660........919046909794048..........8653701637919899728
.....5407387617220.....186677705463298720.......6313899655904879255175
...304183813284988...37918176847270068655....4606746353051274080442020
.17111367047366980.7701980533069758424335.3361172935168170742873724992
LINKS
EXAMPLE
Some solutions for n=3 k=3
..0..0..1..1..0....0..0..1..0..1....0..0..0..1..1....0..0..0..0..0
..0..1..0..0..2....0..2..2..1..0....2..2..0..1..3....0..0..0..0..0
..2..3..1..2..3....3..1..0..1..0....1..3..2..2..1....1..2..2..3..1
..1..3..3..2..0....0..0..1..2..0....3..2..2..3..2....0..1..0..3..3
..1..0..3..0..1....3..3..0..2..0....3..3..1..1..2....3..3..2..3..1
CROSSREFS
Sequence in context: A237674 A183851 A238036 * A204344 A204343 A068362
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 14 2012
STATUS
approved

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Last modified June 17 21:09 EDT 2024. Contains 373464 sequences. (Running on oeis4.)