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A043226 Numbers n such that 1 and 3 occur juxtaposed in the base 10 representation of n but not of n-1. 0
13, 31, 113, 130, 213, 231, 310, 331, 413, 431, 513, 531, 613, 631, 713, 731, 813, 831, 913, 931, 1013, 1031, 1113, 1130, 1213, 1231, 1300, 1413, 1431, 1513, 1531, 1613, 1631, 1713, 1731, 1813, 1831, 1913, 1931, 2013, 2031 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..41.

CROSSREFS

Sequence in context: A271575 A039403 A062339 * A044006 A179034 A179035

Adjacent sequences:  A043223 A043224 A043225 * A043227 A043228 A043229

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified September 18 20:34 EDT 2019. Contains 327181 sequences. (Running on oeis4.)