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Search: id:A155148
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| A155148 |
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Numbers n such that n^4 has exactly 2 different digits. |
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+0
3
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OFFSET
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1,1
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MAPLE
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for n from 1 do convert(convert(n^4, base, 10), set) ; if nops(%) = 2 then print(n) ; fi; od: [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 08 2009]
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CROSSREFS
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Cf. A155149, A155150
Sequence in context: A088221 A124923 A088222 this_sequence A076927 A064647 A062006
Adjacent sequences: A155145 A155146 A155147 this_sequence A155149 A155150 A155151
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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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Two more terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 08 2009
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