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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
OFFSET
1,2
COMMENTS
Computed by Lars Blomberg.
REFERENCES
Eric Angelini, Posting to Sequence Fans Mailing List, Sep 28 2013
LINKS
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 A239083-A239086, A239136-A239139, A239087-A239090, A239215-A239218, A239235.
Sequence in context: A239084 A322000 A061196 * A239137 A252758 A249917
KEYWORD
nonn,base
AUTHOR
Michel Marcus, Mar 11 2014
STATUS
approved