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A234862
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Number of (n+2)X(1+2) 0..3 arrays with each 3X3 subblock having the sum of its 72 absolute element differences equal to 52, and no adjacent elements equal
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1
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2216, 11714, 61954, 326786, 1791552, 9897540, 54119058, 297874488, 1655842138, 9105854856, 50163046756, 278949824936, 1536234456774, 8465287947954, 47047724965648, 259290094145420, 1429038515851044, 7936986520592132
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