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A260766
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Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010011
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1
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2478, 3196, 8056, 16095, 21594, 48788, 104308, 173103, 341748, 744619, 1358260, 2565577, 5470804, 10614658, 19796560, 40837698, 81880380, 154619606, 308916626, 626419385, 1206215390, 2364580587, 4777393178, 9359594548, 18228148840
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