A239138 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.

1, 2, 3, 4, 5, 6, 7, 8, 9, 99, 999, 9999, 99999, 999999, 9999999, 99999999, 999999999, 9999999999, 99999999999, 999999999999, 9999999999999, 99999999999999, 999999999999999, 9999999999999999, 99999999999999999, 999999999999999999, 9999999999999999999

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..27.

Eric Angelini, Less than <, Equal to =, Greater than > (see sequence Sh)

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: A342978 A281091 A271569 * A345964 A298425 A001633

Adjacent sequences: A239135 A239136 A239137 * A239139 A239140 A239141

Keyword

nonn,base

Author

Michel Marcus, Mar 11 2014

Status

approved