

A239137


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.


0



1, 2, 10, 3, 12, 13, 14, 15, 4, 5, 16, 17, 6, 7, 18, 19, 8, 9, 20, 21, 30, 31, 32, 40, 41, 42, 43, 22, 102, 103, 23, 24, 25, 26, 27, 28, 29, 33, 104, 34, 35, 36, 37, 38, 39, 44, 105, 45, 46, 47, 48, 49, 50, 51, 52, 54, 60, 61, 62, 63, 64, 65, 70, 71, 72, 73
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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 Sg)
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: A322000 A061196 A239136 * A252758 A249917 A176577
Adjacent sequences: A239134 A239135 A239136 * A239138 A239139 A239140


KEYWORD

nonn,base


AUTHOR

Michel Marcus, Mar 11 2014


STATUS

approved



