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A140223
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Triangle: Row n contains (d(1),d(2),...,d(n)) in non-descending order, where d(n) = A000005(n).
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2
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1, 1, 2, 1, 2, 2, 1, 2, 2, 3, 1, 2, 2, 2, 3, 1, 2, 2, 2, 3, 4, 1, 2, 2, 2, 2, 3, 4, 1, 2, 2, 2, 2, 3, 4, 4, 1, 2, 2, 2, 2, 3, 3, 4, 4, 1, 2, 2, 2, 2, 3, 3, 4, 4, 4, 1, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 1, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 6, 1, 2, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 6, 1, 2, 2, 2, 2, 2, 2, 3, 3, 4, 4, 4, 4, 6
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OFFSET
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1,3
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LINKS
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EXAMPLE
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The sequence of the numbers of divisors of the first 12 positive integers is: 1,2,2,3,2,4,2,4,3,4,2,6.
Rearranging these into a non-descending sequence gets row-12 of the triangle: 1,2,2,2,2,2,3,3,4,4,4,6.
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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