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Search: id:A034683
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| A034683 |
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Unitary abundant numbers (usigma(n)>2n). |
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+0
12
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| 30, 42, 66, 70, 78, 102, 114, 138, 150, 174, 186, 210, 222, 246, 258, 282, 294, 318, 330, 354, 366, 390, 402, 420, 426, 438, 462, 474, 498, 510, 534, 546, 570, 582, 606, 618, 630, 642, 654, 660, 678, 690, 714, 726, 750, 762, 770, 780, 786, 798, 822, 834
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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If a term n in the sequence ends in neither 0 nor 5, then 10*n is also in the sequence. - Lekraj Beedassy (blekraj(AT)yahoo.com), Jun 11 2004
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REFERENCES
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C. Sung, Mathematical Buds, "Unitary Divisors", Chap. V pp. 42-67, Ed. H. D. Ruderman, Mu Alpha Theta OK 1978.
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CROSSREFS
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Cf. A034444, A034448.
Adjacent sequences: A034680 A034681 A034682 this_sequence A034684 A034685 A034686
Sequence in context: A007304 A053858 A075819 this_sequence A087248 A046401 A091455
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KEYWORD
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nonn
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AUTHOR
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Erich Friedman (erich.friedman(AT)stetson.edu)
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