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A222268
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Number of points defined by the lines described in A222267.
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2
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OFFSET
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2,1
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COMMENTS
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Given a cubic n X n X n grid of points, a collection of lines is produced by constructing a line through every pair of points. A222267 gives the count of such lines. a(n) is the total number of points of intersection of these lines, including the original n^3 points.
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LINKS
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EXAMPLE
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A 2 X 2 X 2 grid of points defines 28 distinct lines which intersect in a total of 15 points (including the original 8 points).
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CROSSREFS
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A222267 is the number of lines produced from the grid of points.
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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