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Search: id:A048251
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| A048251 |
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Smallest number whose sum of divisors is 6^n. |
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+0
8
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| 5, 22, 102, 510, 3210, 17490, 112890, 600270, 3466470, 20205570, 118879530, 697118730, 3949737330, 24217298490
(list; graph; listen)
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OFFSET
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1,1
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FORMULA
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a(n)=Min{x : A000203(x)=6^n}
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EXAMPLE
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Sigma[x]=1296=6.6.6.6 if x={510, 642, 710, 742, 782, 795, 862, 935, 1177, 1207, 1219}; the smallest is a(4)=510.
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CROSSREFS
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A006532, A020477, A019422, A019423, A018427.
Adjacent sequences: A048248 A048249 A048250 this_sequence A048252 A048253 A048254
Sequence in context: A123347 A087439 A033452 this_sequence A017971 A017972 A008485
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu)
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EXTENSIONS
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a(9)-a(14) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Sep 02 2008
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