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A309340 a(n) is the least nonnegative number whose binary digits do not appear in order (not necessarily consecutively) in the concatenation of the binary representations of all previous terms. 1
0, 1, 2, 4, 9, 38, 304, 2433, 38938, 2492040, 318981139, 163318343502 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
This sequence is a variant of A118248.
a(13) > 4.5*10^12. - Giovanni Resta, Aug 08 2019
LINKS
CROSSREFS
See A308540 for the decimal variant.
Cf. A118248.
Sequence in context: A242986 A327057 A151891 * A005204 A204428 A162111
KEYWORD
nonn,base,hard,more
AUTHOR
Rémy Sigrist, Jul 24 2019
EXTENSIONS
a(12) from Giovanni Resta, Aug 08 2019
STATUS
approved

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Last modified April 18 15:48 EDT 2024. Contains 371780 sequences. (Running on oeis4.)