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Search: id:A065895
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| A065895 |
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Which composite number is n^n ? |
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+0
1
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| 0, 1, 17, 201, 2679, 41834, 757857, 15699344, 366719682, 9544947488, 274049557236, 8606313278052
(list; graph; listen)
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OFFSET
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1,3
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EXAMPLE
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27 is the 17th composite number: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27.
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MATHEMATICA
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Table[ n^n - (PrimePi[n^n]) - 1, {n, 1, 12} ]
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CROSSREFS
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Cf. A002808, A000720, A000312.
Adjacent sequences: A065892 A065893 A065894 this_sequence A065896 A065897 A065898
Sequence in context: A017932 A125429 A021134 this_sequence A009479 A017897 A016311
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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), Nov 28 2001
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(AT)rgwv.com) and Vladeta Jovovic (vladeta(AT)Eunet.yu), Nov 29 2001
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