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Search: id:A155146
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| A155146 |
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Numbers n such that n^3 has exactly 3 different digits. |
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+0
2
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| 5, 6, 8, 9, 14, 15, 30, 36, 40, 62, 70, 92, 101, 110, 173, 192, 211, 300, 400, 700, 888, 1001, 1010, 1100, 1920, 3000, 3543, 4000, 7000, 8880, 10001, 10010, 10100, 11000, 19200, 30000, 35430, 40000, 70000, 88800, 100001, 100010, 100100, 101000, 110000
(list; graph; listen)
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OFFSET
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1,1
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MAPLE
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a := proc (n) if nops(convert(convert(n^3, base, 10), set)) = 3 then n else end if end proc: seq(a(n), n = 1 .. 150000); [From Emeric Deutsch (deutsch(AT)duke.poly.edu), Jan 27 2009]
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CROSSREFS
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Cf. A030292
Sequence in context: A120174 A047439 A095763 this_sequence A125251 A055592 A151976
Adjacent sequences: A155143 A155144 A155145 this_sequence A155147 A155148 A155149
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KEYWORD
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nonn
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AUTHOR
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Dmitry Kamenetsky (dkamen(AT)rsise.anu.edu.au), Jan 21 2009
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EXTENSIONS
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Extended by Emeric Deutsch (deutsch(AT)duke.poly.edu), Jan 27 2009
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