A093278 a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 78.

0, 78, 5468, 553822, 2020280808, 88842088842, 88888802222220, 99999978, 555555000888888000, 55555500002222220000, 2222222020288888880808, 88888888842088888888842, 88888888888802222222222220, 99999999999978, 555555555555000888888888888000

Offset

1,2

Links

Table of n, a(n) for n=1..15.

Hans Havermann, Table of A093211-A093299

Example

a(4) is 553822 because its length-4 substrings (5538, 5382, 3822) are all distinct and divisible by 78 and there is no larger number with this property.

Crossrefs

Cf. A093211, A093212, ..., A093299.

Sequence in context: A004367 A194568 A276177 * A328354 A268023 A268016

Adjacent sequences: A093275 A093276 A093277 * A093279 A093280 A093281

Keyword

base,nonn

Author

Hans Havermann, Mar 29 2004

Extensions

a(11)-a(15) from John Cerkan, Jan 05 2018

Status

approved