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A301319
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Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
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0
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1, 7, 45, 302, 1649, 7600, 31172, 119694, 446581, 1658182, 6211592, 23593138, 91031007, 354490536, 1502008575, 5520750802, 463638209284
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