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A222905
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Number of nX7 0..3 arrays with no more than floor(nX7/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order
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1
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17, 1710, 82020, 21064292, 1616042692, 577820456398, 51666240687220, 19807159813457951, 1817220105168370585, 706854001296049850823, 65258971099531300247508, 25532711765112846282295184
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