A118360 Start with 1; repeatedly reverse the digits when the number is written in binary and add 2 to get the next term.

1, 3, 5, 7, 9, 11, 15, 17, 19, 27, 29, 25, 21, 23, 31, 33, 35, 51, 53, 45, 47, 63, 65, 67, 99, 101, 85, 87, 119, 121, 81, 71, 115, 105, 77, 91, 111, 125, 97, 69, 83, 103, 117, 89, 79, 123, 113, 73, 75, 107, 109, 93, 95, 127, 129, 131, 195, 197, 165, 167, 231

Offset: 1

Author

Jan Nordbotten (Jan.Nordbotten(AT)mi.uib.no), May 16 2006

Keywords

• nonn
• base

Examples

			After 11 = 11_10 = 1011_2 the next term is 1101_2 + 10_2 = 1111_2 = 15_10 = 15.
		

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.

Crossrefs

Cf. A117831, A118828, A118361.

Programs

Mathematica

NestList[FromDigits[Reverse[IntegerDigits[#,2]],2]+2&,1,70] (* Harvey P. Dale, May 16 2021 *)