

A139707


Take n in binary. Rotate the binary digits to the right until a 1 once again appears as the leftmost digit. a(n) is result written in binary.


3



1, 10, 11, 100, 110, 101, 111, 1000, 1100, 1010, 1101, 1001, 1110, 1011, 1111, 10000, 11000, 10100, 11001, 10010, 11010, 10101, 11011, 10001, 11100, 10110, 11101, 10011, 11110, 10111, 11111, 100000, 110000, 101000, 110001, 100100, 110010
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OFFSET

1,2


COMMENTS

This sequence written in decimal is A139706.


LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000


EXAMPLE

For n = 14: 14 = 1110 in binary. Rotate once to the right, getting 0111. The leftmost digit is a 0, so rotate again to the right, getting 1011. A 1 is the leftmost digit, so stop here. a(n) therefore is 1011 (which is 11 in decimal).


MATHEMATICA

Table[FromDigits[NestWhile[RotateRight[#]&, RotateRight[IntegerDigits[n, 2]], #[[1]] != 1&]], {n, 40}] (* Harvey P. Dale, Oct 26 2016 *)


CROSSREFS

Cf. A139706, A139709.
Sequence in context: A204009 A043681 A234472 * A139709 A221714 A108779
Adjacent sequences: A139704 A139705 A139706 * A139708 A139709 A139710


KEYWORD

nonn,base


AUTHOR

Leroy Quet, Apr 30 2008


EXTENSIONS

Extended by Ray Chandler, Jul 01 2009


STATUS

approved



