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| A077808
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Number of prime factors of numbers containing in their decimal representation only the digits 0 and 1 (counted with multiplicity).
(history;
published version)
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#12 by Bruno Berselli at Fri Aug 31 03:36:34 EDT 2018
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#11 by Joerg Arndt at Fri Aug 31 02:59:14 EDT 2018
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#10 by Vincenzo Librandi at Fri Aug 31 01:13:27 EDT 2018
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#9 by Vincenzo Librandi at Fri Aug 31 01:13:17 EDT 2018
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| LINKS
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Vincenzo Librandi, <a href="/A077808/b077808.txt">Table of n, a(n) for n = 1..8190</a>
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| STATUS
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proposed
editing
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#8 by Jon E. Schoenfield at Fri Aug 31 00:01:16 EDT 2018
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#7 by Jon E. Schoenfield at Fri Aug 31 00:01:13 EDT 2018
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| MATHEMATICA
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PrimeOmega[#]&/@(Rest[Union[Flatten[Table[FromDigits/@Tuples[ {0, 1}, n], {n, 7}]]]]) _}]]]]) (* _Harvey P. Dale_, May 18 2012 *)
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approved
editing
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#6 by Harvey P. Dale at Fri May 18 12:42:53 EDT 2012
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#5 by Harvey P. Dale at Fri May 18 12:42:44 EDT 2012
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| MATHEMATICA
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PrimeOmega[#]&/@(Rest[Union[Flatten[Table[FromDigits/@Tuples[ {0, 1}, n], {n, 7}]]]]) Harvey P. Dale, May 18 2012
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approved
editing
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#4 by Russ Cox at Fri Mar 30 18:50:29 EDT 2012
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| AUTHOR
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_Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), _, Nov 16 2002
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Discussion
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| Fri Mar 30
| 18:50
| OEIS Server: https://oeis.org/edit/global/246
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#3 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009
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| KEYWORD
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nonn,base,new
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| AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystemsgmail.com), Nov 16 2002
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