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A057343
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Smallest of the most frequently occurring numbers in 1-to-n 4-dimensional multiplication table.
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4
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1, 4, 6, 24, 60, 60, 60, 96, 144, 360, 360, 720, 720, 720, 720, 1440, 1440, 1440, 1440, 1440, 5040, 5040, 5040, 5040, 5040, 5040, 4320, 10080, 10080, 10080, 10080, 10080, 10080, 10080, 10080, 30240, 30240, 30240, 30240, 30240, 30240, 30240, 30240, 30240, 30240, 30240, 30240, 30240, 30240, 30240
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OFFSET
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1,2
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LINKS
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EXAMPLE
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M(n) is the array in which m(x,y,z,t)=x*y*z*t for x = 1 to n, y = 1 to n, z = 1 to n and t = 1 to n In M(7), the most frequently occurring numbers are 60, 72, 84, 120 and 168, each occurring 60 times. The smallest of these numbers is 60, so a(7) = 60.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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