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a(n+1) = a(n) converted to base 10 from base 5 (written in base 10).
3

%I #17 Apr 19 2014 07:48:01

%S 5,10,20,40,130,1010,13020,404040,100412130,201201142010,

%T 11244024443021020,43242234044024403133040,

%U 141203414122301104243434200224130

%N a(n+1) = a(n) converted to base 10 from base 5 (written in base 10).

%H Vincenzo Librandi, <a href="/A023383/b023383.txt">Table of n, a(n) for n = 1..22</a>

%t NestList[FromDigits[IntegerDigits[#,5]]&,5,15] (* _Harvey P. Dale_, Jul 22 2012 *)

%Y Cf. A023390.

%K nonn,base

%O 1,1

%A _David W. Wilson_