A093284 a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 84.

0, 84, 924, 21008400, 99960, 88880488880, 50505008080800, 99999984, 999999924, 22222221008888888400, 99999999960, 88888888880488888888880, 55555550505008888888080800, 99999999999984, 999999999999924, 22222222222221008888888888888400, 99999999999999960

Offset

1,2

Links

Table of n, a(n) for n=1..17.

Hans Havermann, Table of A093211-A093299

Example

a(4) is 21008400 because its length-4 substrings (2100, 1008, 0084, 0840, 8400) are all distinct and divisible by 84 and there is no larger number with this property.

Crossrefs

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

Sequence in context: A219719 A069080 A219577 * A027794 A219713 A027821

Adjacent sequences: A093281 A093282 A093283 * A093285 A093286 A093287

Keyword

base,nonn

Author

Hans Havermann, Mar 29 2004

Extensions

a(11)-a(13) from John Cerkan, Jul 18 2017

a(14)-a(17) from John Cerkan, Jan 04 2018

Status

approved