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A187522
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Number of 3X3 0..n arrays with the array of 2X2 subblock determinants antisymmetric and no off-diagonal 2X2 subblock determinant zero
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1
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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
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