

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



CROSSREFS



KEYWORD

nonn,base


AUTHOR



STATUS

approved



