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A187521
T(n,k)=Number of (n+1)X(n+1) 0..k arrays with the array of 2X2 subblock determinants antisymmetric and no off-diagonal 2X2 subblock determinant zero
8
10, 31, 6, 64, 98, 2, 113, 450, 354, 0, 170, 1590, 4200, 1780, 0, 255, 3426, 34776, 73764, 12008, 0, 336, 8546, 107990, 1655170, 2048596, 157694, 0, 449, 13992, 475370, 8174314, 144075566, 129034386, 2808560, 0, 570, 26158, 978568, 70304076
OFFSET
1,1
COMMENTS
Table starts
.10......31........64.......113........170......255....336...449.570
..6......98.......450......1590.......3426.....8546..13992.26158
..2.....354......4200.....34776.....107990...475370.978568
..0....1780.....73764...1655170....8174314.70304076
..0...12008...2048596.144075566.1201064094
..0..157694.129034386
..0.2808560
..0
LINKS
EXAMPLE
Some k=3 solutions for 5X5
..0..0..2..0..2....2..3..2..1..1....2..1..2..3..3....1..1..0..3..1
..2..1..1..2..0....2..3..3..3..2....2..1..1..1..2....1..1..1..0..2
..2..2..2..2..1....3..3..3..1..2....1..1..1..2..1....2..1..1..1..2
..2..0..1..1..1....2..1..3..1..1....1..2..1..2..2....1..2..1..1..1
..0..2..3..2..2....3..2..2..1..1....2..1..2..2..2....3..0..1..2..2
CROSSREFS
Row 1 is A059306
Sequence in context: A064012 A276180 A247207 * A187624 A187633 A063154
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 10 2011
STATUS
approved