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A098781 Smallest number not occurring earlier fitting the repeating pattern "11223344556677889900". 0
1, 12, 2, 3, 34, 4, 5, 56, 6, 7, 78, 8, 9, 900, 11, 22, 33, 44, 55, 66, 77, 88, 9900, 112, 23, 344, 556, 67, 788, 99001, 122, 334, 45, 566, 778, 89, 9001, 1223, 3445, 5667, 7889, 90011, 223, 34455, 667, 788900, 1122, 3344, 5566, 7788, 990011, 2233, 445 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..53.

CROSSREFS

Sequence in context: A242591 A010205 A080496 * A040142 A169855 A054383

Adjacent sequences:  A098778 A098779 A098780 * A098782 A098783 A098784

KEYWORD

base,easy,nonn

AUTHOR

Eric Angelini, Oct 04 2004

STATUS

approved

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Last modified September 17 06:41 EDT 2019. Contains 327119 sequences. (Running on oeis4.)