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A223878
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Number of 4Xn 0..3 arrays with rows, diagonals and antidiagonals unimodal
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1
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256, 65536, 3863372, 88682677, 1271992512, 13394424591, 112751480926, 798519332969, 4918189868664, 26945689043408, 133456233695247, 604775893442790, 2531399109074463, 9862376758221364, 35997221510544568
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