

A239136


The sequence S = a(1), a(2), ... is defined by a(1)=1, if d,e,f are consecutive digits then we do not have d <= e < f, and S is always extended with the smallest integer not yet present in S.


18



1, 2, 10, 3, 11, 101, 102, 12, 13, 14, 4, 15, 5, 16, 6, 17, 7, 18, 8, 19, 9, 20, 21, 22, 103, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 104, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 105, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 106, 56, 57, 58, 59, 60
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OFFSET

1,2


COMMENTS

Computed by Lars Blomberg.


REFERENCES

Eric Angelini, Posting to Sequence Fans Mailing List, Sep 28 2013


LINKS

Table of n, a(n) for n=1..66.
Eric Angelini, Less than <, Equal to =, Greater than > (see sequence Sf)
Eric Angelini, Less than <, Equal to =, Greater than > [Cached copy, with permission of the author]


CROSSREFS

The sequences in this family are given in A239083A239086, A239136A239139, A239087A239090, A239215A239218, A239235.
Sequence in context: A239084 A322000 A061196 * A239137 A252758 A249917
Adjacent sequences: A239133 A239134 A239135 * A239137 A239138 A239139


KEYWORD

nonn,base


AUTHOR

Michel Marcus, Mar 11 2014


STATUS

approved



