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A185923 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock determinant equal to any horizontal or vertical neighbor 2X2 subblock determinant 5
256, 3516, 3516, 49342, 158806, 49342, 687900, 7232034, 7232034, 687900, 9599032, 328811578, 1079255234, 328811578, 9599032, 133932498, 14927163064, 160170012852, 160170012852, 14927163064, 133932498, 1868731400, 678146728482 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.........256...........3516............49342............687900
........3516.........158806..........7232034.........328811578
.......49342........7232034.......1079255234......160170012852
......687900......328811578.....160170012852....77659127557452
.....9599032....14927163064...23757227154988.37582792498003078
...133932498...678146728482.3524972742682648
..1868731400.30800191295066
.26074015256
LINKS
EXAMPLE
Some solutions for 4X3
..0..2..0....0..2..0....0..1..0....0..3..0....0..1..0....0..1..0....0..2..0
..1..0..3....1..0..3....1..0..2....1..0..2....2..0..1....2..2..2....3..0..3
..0..3..2....0..3..1....3..1..0....1..3..3....2..2..1....1..3..3....1..2..2
..0..0..1....2..1..3....0..3..1....3..1..2....2..1..0....2..3..1....1..1..0
CROSSREFS
Sequence in context: A185572 A185925 A205281 * A185919 A259320 A247931
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 06 2011
STATUS
approved

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Last modified February 28 09:01 EST 2024. Contains 370394 sequences. (Running on oeis4.)