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Search: id:A127906
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| A127906 |
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(n in base 10) * (n in base 2). |
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+0
1
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| 0, 1, 20, 33, 400, 505, 660, 777, 8000, 9009, 10100, 11121, 13200, 14313, 15540, 16665, 160000, 170017, 180180, 190209, 202000, 212121, 222420, 232553, 264000, 275025, 286260, 297297, 310800, 321929, 333300
(list; graph; listen)
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OFFSET
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1,3
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EXAMPLE
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0*0, 1*1, 2*10, 3*11, 4*100, 5*101, 6*110, 7*111, 8*1000, 9*1001, 10*1010........
a(14) is 14*1110 = 15540.
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MATHEMATICA
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Table[n*FromDigits[IntegerDigits[n, 2]], {n, 0, 30}] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), May 05 2007
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CROSSREFS
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Sequence in context: A075230 A165236 A067468 this_sequence A108667 A108669 A039343
Adjacent sequences: A127903 A127904 A127905 this_sequence A127907 A127908 A127909
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KEYWORD
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nonn
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AUTHOR
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Ivan Baroni (estatico04(AT)yahoo.com.br), Apr 05 2007
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EXTENSIONS
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Corrected and extended by Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), May 05 2007
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