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A179956 Numbers n such that n contains n-1 but does not begin with n-1 0
1, 21, 121, 1121, 11121, 111121 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

The next term after 1 is 21, because 21 is the lowest integer higher than 1 that contains a 1 but does not start with 1.

CROSSREFS

Sequence in context: A200888 A179441 A164785 * A117388 A053052 A243882

Adjacent sequences:  A179953 A179954 A179955 * A179957 A179958 A179959

KEYWORD

easy,nonn

AUTHOR

Dominick Cancilla, Aug 03 2010

STATUS

approved

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Last modified January 18 16:40 EST 2019. Contains 319271 sequences. (Running on oeis4.)