A039939 Smallest k for which k, 2k, ... nk all contain the digit 8.

8, 84, 284, 2842, 8937, 8964, 8964, 85964, 89641, 89641, 89641, 89729, 296984, 429817, 897299, 897299, 897299, 897299, 897299, 897299, 897299, 897299, 897299, 8697299, 9897947, 9929817, 9929817, 9929817, 9929817, 9929817, 9929817

Offset: 1

Author

Erich Friedman

Keywords

• base
• nonn

Examples

			a(2)=84 since 84 and 168 contain a 8.
		

Links

• Giovanni Resta, Table of n, a(n) for n = 1..262

Crossrefs

Cf. A039932, A039933, A039934, A039935, A039936, A039937, A039938, A039940.

Extensions

More terms from Patrick De Geest, Oct 15 1999