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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 September 13 04:07 EDT 2024. Contains 375859 sequences. (Running on oeis4.)