

A166751


Those even positive integers that when written in binary, each run of 0's is of exactly the same length as the run of 1's immediately before it.


0



2, 10, 12, 42, 44, 50, 56, 170, 172, 178, 184, 202, 204, 226, 240, 682, 684, 690, 696, 714, 716, 738, 752, 810, 812, 818, 824, 906, 908, 962, 992, 2730, 2732, 2738, 2744, 2762, 2764, 2786, 2800, 2858, 2860, 2866, 2872, 2954, 2956, 3010, 3040, 3242, 3244
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OFFSET

1,1


COMMENTS

Each term, when written in binary, contains an even number of digits, obviously.


LINKS

Table of n, a(n) for n=1..49.


EXAMPLE

The first 7 terms written in binary: 10, 1010, 1100, 101010, 101100, 110010, 111000.


CROSSREFS

Sequence in context: A154391 A035928 A014486 * A216649 A071162 A075165
Adjacent sequences: A166748 A166749 A166750 * A166752 A166753 A166754


KEYWORD

base,nonn


AUTHOR

Leroy Quet, Oct 21 2009


EXTENSIONS

Extended by Ray Chandler, Mar 11 2010


STATUS

approved



