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Search: id:A035504
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| A035504 |
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Numbers that eventually reach 1 under "x -> sum of cubes of digits of x". |
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+0
7
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| 1, 10, 100, 112, 121, 211, 778, 787, 877, 1000, 1012, 1021, 1102, 1120, 1189, 1198, 1201, 1210, 1234, 1243, 1324, 1342, 1423, 1432, 1579, 1597, 1759, 1795, 1819, 1891, 1918, 1957, 1975, 1981, 2011, 2101, 2110, 2134, 2143, 2314, 2341, 2413, 2431, 2779
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Subsequence of A016777; a(n) mod 3 = 1; A165330(a(n))=1. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 17 2009]
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REFERENCES
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R. K. Guy, Unsolved Problems Number Theory, Sect. E34.
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LINKS
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R. Zumkeller, Table of n, a(n) for n = 1..1000 [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 17 2009]
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CROSSREFS
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Cf. A007770.
Cf. A046197, A008585, A165333, A165334, A165335; subsequence of A165332. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 17 2009]
Sequence in context: A099820 A167502 A135652 this_sequence A072366 A119082 A116143
Adjacent sequences: A035501 A035502 A035503 this_sequence A035505 A035506 A035507
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KEYWORD
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nonn,easy,base
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org), Mar 31 2000
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