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Search: id:A069516
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| A069516 |
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Geometric mean of digits = 3. |
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+0
3
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| 3, 19, 33, 139, 333, 1199, 1339, 3333, 11399, 13339, 33333, 111999, 113399, 133339, 333333, 1113999, 1133399, 1333339, 3333333, 11119999, 11133999, 11333399, 13333339, 33333333, 111139999, 111333999, 113333399, 133333339, 333333333
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OFFSET
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1,1
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COMMENT
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No number is obtainable by permuting the digits of other members - only one with ascending order of digits is included.
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EXAMPLE
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1339 belongs to this sequence but 1933 does not.
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MATHEMATICA
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a = {}; b = 3; Do[c = Apply[ Times, IntegerDigits[n]]/b^Floor[ Log[10, n] + 1]; If[c == 1 && Position[a, FromDigits[ Sort[ IntegerDigits[n]]]] == {}, Print[n]; a = Append[a, n]], {n, 1, 10^8}]
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CROSSREFS
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Cf. A061427, A069512, A069518.
Sequence in context: A128069 A056246 A061427 this_sequence A098856 A062291 A106082
Adjacent sequences: A069513 A069514 A069515 this_sequence A069517 A069518 A069519
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KEYWORD
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nonn,base
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 30 2002
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EXTENSIONS
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Edited and extended by Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 01 2002
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