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A119113
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Triangular numbers composed of digits {1,3,5}.
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2
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1, 3, 15, 55, 153, 351, 5151, 33153, 35511, 3531153, 3555111, 35133153, 51151555, 51313515, 355311153, 355551111, 1553111511, 5135151153, 5351313331, 15533353153, 35553111153, 35555511111, 153335313531, 155315331153
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| G. Resta, Tridigital Triangular Numbers
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MATHEMATICA
| Select[Accumulate[Range[1000000]], Union[Drop[DigitCount[#], {1, 5, 2}]]=={0}&] (* From Harvey P. Dale, Apr 16 2011 *)
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CROSSREFS
| Cf. A000217, A119114. See A119033 for a table of cross-references.
Sequence in context: A082708 A093925 A176288 * A152896 A007973 A015249
Adjacent sequences: A119110 A119111 A119112 * A119114 A119115 A119116
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KEYWORD
| nonn,base
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AUTHOR
| Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006
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