

A164859


a(1)=1. a(n) = the smallest positive integer that, when written in binary, contains both binary a(n1) and binary n as (possibly overlapping) substrings.


0



1, 2, 6, 12, 44, 44, 236, 472, 2520, 10712, 10712, 10712, 10712, 10712, 125400, 250800, 2347952, 19125168, 19125168, 19125168, 354669488, 354669488, 6260249520, 6260249520, 109339464624, 109339464624, 109339464624
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OFFSET

1,2


LINKS



EXAMPLE

a(6) = 44, which is 101100 in binary. a(7) therefore contains both 101100 and the binary representation of 7, which is 111, as substrings when a(7) is written in binary. So a(7) = 236, which is 11101100 in binary. (Both substrings share a single digit of 1.)


CROSSREFS



KEYWORD

base,nonn


AUTHOR



EXTENSIONS



STATUS

approved



