

A174206


Write natural numbers in base 2 as a stream of digits. Moving left to right, delete even occurrences of digit 0 and 1.


3



0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

0,1


LINKS

Table of n, a(n) for n=0..64.


EXAMPLE

Numbers in base 2: 0, 1, 10, 11, 100, 101, 110, 111, 1000..... Stream of digits: 0110111001011101111000 Delete even occurrences of 0(replaced by ~): 011~1110~10111~11110~0 Delete even occurrences of 1(replaced by ~): 01~~1~10~~01~1~~1~10~0 Left digits: 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0,....


CROSSREFS

A174203A174205, A174207A174210
Sequence in context: A074322 A284935 A118249 * A265333 A159637 A095076
Adjacent sequences: A174203 A174204 A174205 * A174207 A174208 A174209


KEYWORD

easy,nonn,base,uned


AUTHOR

Paolo P. Lava and Giorgio Balzarotti, Mar 15 2010


STATUS

approved



