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A187522
Number of 3X3 0..n arrays with the array of 2X2 subblock determinants antisymmetric and no off-diagonal 2X2 subblock determinant zero
1
6, 98, 450, 1590, 3426, 8546, 13992, 26158, 41748, 67588, 90082, 148792, 187474, 260222, 355100, 480620, 569610, 778354, 903974, 1192760, 1466488, 1766846, 1994060, 2603040, 2993262, 3493594, 4070056, 4892770, 5366122, 6633208, 7221322
OFFSET
1,1
COMMENTS
Row 2 of A187521
LINKS
EXAMPLE
Some solutions for 3X3
..0..0..3....2..2..2....2..1..2....3..3..3....0..3..2....2..3..2....1..1..1
..3..3..2....1..1..2....2..1..1....3..3..1....0..2..2....2..3..0....2..2..0
..0..3..2....3..1..2....3..2..2....1..3..1....1..1..1....0..3..0....0..1..0
CROSSREFS
Sequence in context: A064753 A322739 A244251 * A224615 A138913 A360336
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 10 2011
STATUS
approved