

A161979


a(1)=1. a(n) = the smallest integer > a(n1) containing {the string made by reversing the order of the binary digits of n, and removing leading 0's} as a substring when a(n) is written in binary.


2



1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 22, 23, 30, 31, 34, 36, 50, 52, 53, 54, 58, 59, 76, 86, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 105, 114, 115, 116, 148, 149, 181, 182, 183, 186, 189, 190, 198, 204, 205, 214, 215, 216, 236, 237, 295, 302, 311, 316, 350, 351, 382
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OFFSET

1,2


LINKS



EXAMPLE

13 in binary is 1101, which reversed is 1011. a(13) = the smallest integer > a(12)=14 that contains the string 1011 as a substring in its binary representation. a(13) therefore equals 22, which is 10110 in binary.


CROSSREFS



KEYWORD

base,nonn


AUTHOR



EXTENSIONS

Corrected and extended by Sean A. Irvine and Jasper Mulder (jasper.mulder(AT)planet.nl), Oct 04 2009


STATUS

approved



