OFFSET
1,1
COMMENTS
a(12) has 141 digits - Harvey P. Dale, May 24 2011.
LINKS
John Cerkan, Table of n, a(n) for n = 1..15
MATHEMATICA
NestList[FromDigits[IntegerDigits[#, 3], 7]&, 3, 10] (* Harvey P. Dale, May 24 2011 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
a(11) from Harvey P. Dale, May 24 2011.
STATUS
approved