OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..160
MATHEMATICA
NestList[FromDigits[IntegerDigits[#, 9]]&, 9, 53] (* Zak Seidov, Apr 18 2014 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved