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A251638
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Number of (n+2)X(1+2) 0..2 arrays with some row, column, diagonal or antidiagonal in every 3X3 subblock summing to 3
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1
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17511, 429399, 10560127, 259228149, 6364650023, 156279294337, 3837213542225, 94217351705611, 2313377685724183, 56801788011413551, 1394689284588080653, 34244666060924691341, 840830398251185804161, 20645427139891516724819
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