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Search: id:A140223
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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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+0
3
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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
(list; table; graph; listen)
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OFFSET
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1,3
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LINKS
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Leroy Quet, Home Page (listed in lieu of email address)
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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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Cf. A000005, A140224, A140225.
Sequence in context: A024890 A007895 A053260 this_sequence A014643 A118382 A007723
Adjacent sequences: A140220 A140221 A140222 this_sequence A140224 A140225 A140226
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KEYWORD
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nonn,tabl
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AUTHOR
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Leroy Quet, May 12 2008
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EXTENSIONS
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Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jun 26 2009
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