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A233993
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Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 18
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1
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17156, 51026, 150572, 560408, 2021016, 9191620, 39038268, 213791308, 1031265884, 6478189956, 33941673948, 230895962640, 1269494065360, 8976203094604, 50758367608856, 364579538686824, 2098173723540476, 15134353956170396
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