login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A261660 In base 3, 0, together with numbers of the form i00j00k00m00... where i = 1 or 2 and j,k,m,... are 0, 1, or 2. 2

%I

%S 0,1,2,10,20,100,200,1000,1001,1002,2000,2001,2002,10000,10010,10020,

%T 20000,20010,20020,100000,100100,100200,200000,200100,200200,1000000,

%U 1000001,1000002,1001000,1001001,1001002,1002000,1002001,1002002,2000000,2000001,2000002,2001000,2001001,2001002,2002000,2002001,2002002

%N In base 3, 0, together with numbers of the form i00j00k00m00... where i = 1 or 2 and j,k,m,... are 0, 1, or 2.

%C A low density sequence with the property that every nonnegative integer is the sum of at most three terms.

%D Veit Elser, Posting to Math Fun Mailing List, Aug 28 2015

%Y Cf. A261661, A261662.

%K nonn,base

%O 1,3

%A _N. J. A. Sloane_, Aug 28 2015

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 October 22 05:15 EDT 2021. Contains 348160 sequences. (Running on oeis4.)