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A039988 k th digit of a(n) is the number of different digits within 1 of k (not including k). 0
11, 111, 1111, 1221, 11111, 111111, 1111111, 1221221, 11111111, 111111111, 1111111111, 1221221221, 11111111111, 111111111111, 1111111111111, 1221221221221, 11111111111111, 111111111111111, 1111111111111111 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..18.

CROSSREFS

Sequence in context: A098595 A273978 A077488 * A182452 A283006 A283257

Adjacent sequences:  A039985 A039986 A039987 * A039989 A039990 A039991

KEYWORD

nonn,base

AUTHOR

Erich Friedman

STATUS

approved

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Last modified November 17 13:33 EST 2019. Contains 329230 sequences. (Running on oeis4.)