login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A043092 Numbers in which every string of 2 consecutive base 6 digits contains exactly 2 distinct numbers. 6
0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 37, 38, 39, 40, 41, 48, 49, 51, 52, 53, 54, 55, 56, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 73, 74, 75, 76, 77, 78, 80 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..63.

MATHEMATICA

Select[Range[0, 80], FreeQ[Differences[IntegerDigits[#, 6]], 0]&] (* Harvey P. Dale, Sep 09 2016 *)

CROSSREFS

Cf. A000975 (base-2 analog), A031941 or A043089 (base-3 analog), A031942 or A043090 (base-4 analog), A031943 or A043091 (base-5 analog), A043093, ...,  A043096 (base-7 through base-10 analog).

Sequence in context: A047304 A020658 A195178 * A023801 A267305 A302478

Adjacent sequences:  A043089 A043090 A043091 * A043093 A043094 A043095

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 17 15:19 EST 2019. Contains 320220 sequences. (Running on oeis4.)