The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A156673 a(1)=0, a(n+1) is the smallest nonprime with sum of digits > sum of digits of a(n). 1

%I #4 Mar 30 2012 18:52:32

%S 0,1,4,6,8,9,28,38,39,49,68,69,88,98,99,289,299,399,589,689,699,799,

%T 899,999,2899,3899,3999,5899,5999,6999,7999,9899,9999,19999,29999,

%U 39999,58999,68999,69999,88999,89999,99999,299899,299999,399999,499999,689999

%N a(1)=0, a(n+1) is the smallest nonprime with sum of digits > sum of digits of a(n).

%e 0, 1(1>0), 4(4>1), 6(6>4), 8(8>6), 9(9>8), 28(2+8>9), 38(3+8>2+8), 39(3+9>3+8), etc.

%Y Cf. A067954.

%K nonn,base

%O 1,3

%A _Juri-Stepan Gerasimov_, Feb 13 2009

%E Extended by _Charles R Greathouse IV_, Mar 25 2010

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 May 13 06:21 EDT 2024. Contains 372498 sequences. (Running on oeis4.)