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A050728 Decimal expansion of 7^n contains no pair of consecutive equal digits (probably finite). 1
0, 1, 2, 3, 4, 5, 7, 8, 9, 10, 12, 17, 27 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..12.

EXAMPLE

7^27 = 65712362363534280139543.

CROSSREFS

Cf. A030703, A046265, A046273.

Sequence in context: A094210 A165256 A175020 * A230999 A180590 A289342

Adjacent sequences:  A050725 A050726 A050727 * A050729 A050730 A050731

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Sep 15 1999

STATUS

approved

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Last modified April 12 00:03 EDT 2021. Contains 342910 sequences. (Running on oeis4.)