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A239218 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, 3, 4, 5, 6, 7, 8, 9, 10, 11, 101, 20, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 102, 30, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 103, 40, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 104, 50, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 105, 60, 56, 57, 58, 59, 61 (list; graph; refs; listen; history; text; internal format)
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 Su)

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: A188649 A068634 A049872 * A263563 A004873 A043316

Adjacent sequences:  A239215 A239216 A239217 * A239219 A239220 A239221

KEYWORD

nonn,base

AUTHOR

Michel Marcus, Mar 12 2014

STATUS

approved

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Last modified July 15 22:48 EDT 2019. Contains 325061 sequences. (Running on oeis4.)