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Search: id:A031997
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| A031997 |
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Odd numbers which when cubed give number composed just of the digits 0, 1, 2, 3. |
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+0
2
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| 0, 1, 11, 101, 1001, 10001, 100001, 684917, 1000001, 10000001, 100000001, 1000000001
(list; graph; listen)
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OFFSET
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1,3
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COMMENT
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Note that 684917 (whose cube is 321302302131323213) so far is the only entry not of the form 10^x + 1.
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MATHEMATICA
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Do[ If[ Union[ IntegerDigits[ n^3 ] ] [ [ -1 ] ] < 4, Print[ n ] ], {n, 0, 10^9} ]
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CROSSREFS
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Cf. A030175.
Sequence in context: A138894 A122105 A118937 this_sequence A056810 A116098 A116129
Adjacent sequences: A031994 A031995 A031996 this_sequence A031998 A031999 A032000
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KEYWORD
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nonn,base
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 23 2001
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