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A196537
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Number of nX1 0..4 arrays with each element equal to the number its horizontal and vertical neighbors less than or equal to itself
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3
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1, 3, 2, 7, 19, 35, 77, 176, 377, 819, 1801, 3927, 8562, 18711, 40855, 89179, 194729, 425184, 928305, 2026855, 4425441, 9662395, 21096706, 46062279, 100571611, 219586403, 479441557, 1046805072, 2285577449, 4990293595, 10895727817
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