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A305917
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Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
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1
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21, 289, 312, 4982, 57465, 811996, 18643274, 371733699, 6830409319, 143897189930, 2971442216847, 59080121487287, 1211031708383269, 24872652363493440, 504919099584347536, 10304854339183282114, 210797145712163688250
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