A093287 a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 87.

0, 87, 957, 9918, 99963, 888444222111, 2022228505555, 7707077711010111, 999999924, 9999999936, 3333333303366666666066, 999999990990666666660660, 88888800088085555550005505, 99999999999972, 555555555055005888888888088008, 66666666660660669999999999099099

Offset

1,2

Links

Table of n, a(n) for n=1..16.

Hans Havermann, Table of A093211-A093299

Example

a(6) is 888444222111 because its length-6 substrings (888444, 884442, 844422, 444222, 442221, 422211, 222111) are all distinct and divisible by 87 and there is no larger number with this property.

Crossrefs

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

Sequence in context: A128956 A283952 A294907 * A231218 A186054 A082955

Adjacent sequences: A093284 A093285 A093286 * A093288 A093289 A093290

Keyword

base,nonn

Author

Hans Havermann, Mar 29 2004

Extensions

a(11)-a(13) from John Cerkan, Jul 05 2017

a(14)-a(16) from John Cerkan, Jan 04 2018

Status

approved