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A183698 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock nonsingular 10
50, 314, 314, 1970, 4594, 1970, 12362, 66658, 66658, 12362, 77570, 969978, 2235330, 969978, 77570, 486746, 14100346, 75166498, 75166498, 14100346, 486746, 3054290, 205047906, 2525447442, 5848268518, 2525447442, 205047906, 3054290, 19165418 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
........50...........314...............1970..................12362
.......314..........4594..............66658.................969978
......1970.........66658............2235330...............75166498
.....12362........969978...........75166498.............5848268518
.....77570......14100346.........2525447442...........454422625582
....486746.....205047906........84872526674.........35325040673626
...3054290....2981428242......2852069116186.......2745624826054514
..19165418...43352455562.....95843840904146.....213413389362873662
.120261410..630370287594...3220808030907306...16588019956268604926
.754630394.9166011482354.108234716039535994.1289347795300644331026
LINKS
EXAMPLE
Some solutions for 4X3
..0..2..1....2..0..2....1..2..0....2..1..2....1..2..2....0..2..2....1..0..2
..2..1..1....1..1..1....1..0..1....0..2..2....1..0..1....2..2..1....2..2..0
..2..0..2....1..0..1....2..2..1....1..2..1....0..2..1....2..0..1....2..0..1
..2..1..2....2..1..2....2..1..0....1..1..0....2..1..2....0..2..0....0..2..2
CROSSREFS
Sequence in context: A172519 A046656 A205620 * A183690 A221572 A124809
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 06 2011
STATUS
approved

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Last modified April 19 10:56 EDT 2024. Contains 371791 sequences. (Running on oeis4.)