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A090548
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Least number that ends an arithmetic progression of n numbers with the same number of divisors.
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3
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1, 3, 7, 23, 29, 157, 215, 1139, 1211, 2089, 5161, 5293, 6347, 10717, 14233, 28213, 31451, 72965, 119029, 121603, 124177, 611261, 632171, 2003171, 2012771
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OFFSET
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1,2
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COMMENTS
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In the following triangle the n-th row contains the least set of n numbers in arithmetic progression with the same number of divisors. By "least" we mean that the largest term is minimized. Sequence contains the leading diagonal. In other words, largest of n numbers in arithmetic progression with the same tau function, or 0 if no such number exists.
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LINKS
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FORMULA
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EXAMPLE
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1
2 3
3 5 7
5 11 17 23
5 11 17 23 29 ...
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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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