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A337391
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a(n) is the smallest n-digit number divisible by n^3.
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0
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1, 16, 108, 1024, 10000, 100008, 1000188, 10000384, 100000575, 1000000000, 10000001319, 100000001088, 1000000000792, 10000000000536, 100000000001250, 1000000000000000, 10000000000001886, 100000000000001952, 1000000000000003324, 10000000000000000000, 100000000000000008972, 1000000000000000009208
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OFFSET
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1,2
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LINKS
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FORMULA
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EXAMPLE
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a(2) = 16, as 16 is the first 2-digit number divisible by 2^3 = 8.
a(3) = 108, as 108 is the first 3-digit number divisible by 3^3 = 27.
a(4) = 1024, as 1024 is the first 4-digit number divisible by 4^3 = 64.
a(5) = 10000, as 10000 is the first 5-digit number divisible by 5^3 = 125.
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MATHEMATICA
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Table[n^3 * Ceiling[10^(n - 1)/n^3], {n, 1, 22}] (* Amiram Eldar, Aug 25 2020 *)
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy,base
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AUTHOR
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STATUS
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approved
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