OFFSET
1,2
COMMENTS
The next term (a(6)) has 158 digits. - Harvey P. Dale, Sep 18 2018
LINKS
John Cerkan, Table of n, a(n) for n = 1..7
MATHEMATICA
NestList[FromDigits[IntegerDigits[2#, 2]]&, 1, 5] (* Harvey P. Dale, Sep 18 2018 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Steve Umbehocker [ umbe(AT)dilbert.cqs.washington.edu ]
EXTENSIONS
Corrected by Franklin T. Adams-Watters, Mar 13 2006
STATUS
approved