OFFSET
1,2
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
N. J. A. Sloane and others, Sequences of RADD type, OEIS wiki.
EXAMPLE
After 11 = 11_10 = 1011_2 the next term is 1101_2 + 10_2 = 1111_2 = 15_10 = 15.
MATHEMATICA
NestList[FromDigits[Reverse[IntegerDigits[#, 2]], 2]+2&, 1, 70] (* Harvey P. Dale, May 16 2021 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Jan Nordbotten (Jan.Nordbotten(AT)mi.uib.no), May 16 2006
STATUS
approved