A044039 - OEIS

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A044039

Numbers k such that 7 and 9 occur juxtaposed in the base-10 representation of k but not of k+1.

0

79, 97, 179, 197, 279, 297, 379, 397, 479, 497, 579, 597, 679, 697, 779, 799, 879, 897, 979, 997, 1079, 1097, 1179, 1197, 1279, 1297, 1379, 1397, 1479, 1497, 1579, 1597, 1679, 1697, 1779, 1799, 1879, 1897, 1979, 1997, 2079

(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: A117244 A039436 A043259 * A065211 A106757 A285228

Adjacent sequences: A044036 A044037 A044038 * A044040 A044041 A044042

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved