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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 R. H. Hardin, Table of n, a(n) for n = 1..179 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 Adjacent sequences:  A183695 A183696 A183697 * A183699 A183700 A183701 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 06 2011 STATUS approved

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Last modified June 6 10:01 EDT 2020. Contains 334860 sequences. (Running on oeis4.)