

A239089


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, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 23, 24, 25, 26, 27, 28, 29, 34, 35, 36, 37, 38, 39, 45, 46, 47, 48, 49, 56, 57, 58, 59, 67, 68, 69, 78, 79, 89, 90, 10, 11, 20, 21, 22, 30, 31, 32, 33, 40, 41, 42, 43, 44, 50
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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..61.
Eric Angelini, Less than <, Equal to =, Greater than > (see sequence Sn)
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: A102234 A174908 A082757 * A032881 A239216 A032848
Adjacent sequences: A239086 A239087 A239088 * A239090 A239091 A239092


KEYWORD

nonn,base


AUTHOR

N. J. A. Sloane, Mar 11 2014


STATUS

approved



