A050728 Decimal expansion of 7^n contains no pair of consecutive equal digits (probably finite).

0, 1, 2, 3, 4, 5, 7, 8, 9, 10, 12, 17, 27

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