A259083 a(n) = largest k such that the decimal representation of 7^k does not contain the digit n.

35, 30, 28, 20, 29, 25, 33, 39, 33, 61

Offset: 0

Author

N. J. A. Sloane, Jun 18 2015

Keywords

• nonn
• fini
• full
• base

Comments

These values are only conjectural.

Links

• Popular Computing (Calabasas, CA), Two Tables, Vol. 1, (No. 9, Dec 1973), page PC9-16.

Crossrefs

Cf. A094776, A259081, A259082.