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A260030
Convert the last term from decimal to binary!
9
12, 1100, 10001001100, 1001010100000110110010101010001100
OFFSET
1,1
COMMENTS
The next term has 110 digits. - Harvey P. Dale, May 15 2018
MATHEMATICA
NestList[FromDigits[IntegerDigits[#, 2]]&, 12, 4] (* Harvey P. Dale, May 15 2018 *)
CROSSREFS
For initial terms 2 through 12 see A008559, A006938, A260025, A260024, A260026, A260027, A260028, A260029, A008559 (again), A006938 (again), A260030 respectively.
Sequence in context: A274117 A295427 A354822 * A160010 A325906 A181718
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Jul 14 2015
STATUS
approved