OFFSET
1,1
COMMENTS
The next term has 267 digits. - Harvey P. Dale, Dec 22 2023
LINKS
John Cerkan, Table of n, a(n) for n = 1..8
MATHEMATICA
NestList[FromDigits[IntegerDigits[#, 2], 9]&, 2, 5] (* Harvey P. Dale, Dec 22 2023 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
a(6) from John Cerkan, Oct 23 2016
STATUS
approved