login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A043820 Number of runs in the base 3 representation of n is congruent to 5 mod 10. 0

%I #6 Aug 22 2020 14:06:50

%S 91,92,96,97,100,101,102,104,138,140,141,142,145,146,150,151,172,173,

%T 177,178,181,182,183,185,192,194,195,196,208,209,210,212,253,254,258,

%U 259,262,263,264,266,271,272,274,278,280,281

%N Number of runs in the base 3 representation of n is congruent to 5 mod 10.

%t Select[Range[300],Mod[Length[Split[IntegerDigits[#,3]]],10]==5&] (* _Harvey P. Dale_, Aug 22 2020 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 11 15:31 EDT 2024. Contains 375073 sequences. (Running on oeis4.)