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#11 by Michael De Vlieger at Tue Oct 03 22:23:58 EDT 2023
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#10 by Jon E. Schoenfield at Tue Oct 03 22:00:18 EDT 2023
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#9 by Jon E. Schoenfield at Tue Oct 03 22:00:16 EDT 2023
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Numbers n with the property that all pairs of consecutive base -4 digits differ by 1.
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| STATUS
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approved
editing
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#8 by Charles R Greathouse IV at Thu Nov 21 12:46:32 EST 2013
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| MATHEMATICA
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Join[Range[3], Select[Range[2000], Union[Abs[Differences[IntegerDigits[#, 3]]]]=={1}&]] (* From }&]] (* _Harvey P. Dale, _, Dec 28 2011 *)
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Discussion
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| Thu Nov 21
| 12:46
| OEIS Server: https://oeis.org/edit/global/2062
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#7 by Russ Cox at Fri Mar 30 18:56:25 EDT 2012
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Discussion
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| Fri Mar 30
| 18:56
| OEIS Server: https://oeis.org/edit/global/285
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#6 by Harvey P. Dale at Wed Dec 28 11:11:01 EST 2011
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#5 by Harvey P. Dale at Wed Dec 28 11:10:57 EST 2011
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| MATHEMATICA
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Join[Range[3], Select[Range[2000], Union[Abs[Differences[IntegerDigits[#, 3]]]]=={1}&]] (* From Harvey P. Dale, Dec 28 2011 *)
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| STATUS
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approved
editing
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#4 by N. J. A. Sloane at Wed Sep 22 03:00:00 EDT 2004
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| NAME
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AllNumbers n with property that all pairs of consecutive base 4 digits differ by 1.
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| KEYWORD
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nonn,base,new
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#3 by N. J. A. Sloane at Sat Sep 13 03:00:00 EDT 2003
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| KEYWORD
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nonn,base,new
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| AUTHOR
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Clark Kimberling, (ck6(AT)evansville.edu)
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#2 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003
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| KEYWORD
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nonn,base,new
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| AUTHOR
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Clark Kimberling, ck6@cedar.(AT)evansville.edu
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