A093263 a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 63.

0, 63, 7567, 774977, 77742777, 99993699993, 777779177777, 77777784777777, 7777777147777777, 7777777770777777777, 777777777007777777770

Offset

1,2

Links

Table of n, a(n) for n=1..11.

Hans Havermann, Table of A093211-A093299

Example

a(4) is 774977 because its length-4 substrings (7749, 7497, 4977) are all distinct and divisible by 63 and there is no larger number with this property

Crossrefs

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

Sequence in context: A292782 A251011 A234616 * A069433 A178634 A174763

Adjacent sequences: A093260 A093261 A093262 * A093264 A093265 A093266

Keyword

base,nonn

Author

Hans Havermann, Mar 29 2004

Status

approved