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A111746
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Number of squares in the interior of the square with vertices (n,0), (0,n), (-n,0) and (0,-n) in a square (x,y)-grid.
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0
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0, 5, 17, 42, 82, 143, 227, 340, 484, 665, 885, 1150, 1462, 1827, 2247, 2728, 3272, 3885, 4569, 5330, 6170, 7095, 8107, 9212, 10412, 11713, 13117, 14630, 16254, 17995, 19855, 21840, 23952, 26197, 28577, 31098, 33762, 36575, 39539, 42660, 45940
(list; graph; refs; listen; history; internal format)
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