A093249 a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 49.

0, 498, 5882, 2205880, 55566444, 77170177870877, 550000588000083300003, 99999984, 888848044666636033, 9999999968, 444444404046666666060699999990909, 77777777077077777777077, 111111111001133333333300339999999990099, 5555555550055033333333300330

Offset

1,2

Links

Table of n, a(n) for n=1..14.

Hans Havermann, Table of A093211-A093299

Example

a(4) is 2205880 because its length-4 substrings (2205, 2058, 0588, 5880) are all distinct and divisible by 49 and there is no larger number with this property.

Crossrefs

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

Sequence in context: A210785 A064255 A067917 * A235753 A235528 A277785

Adjacent sequences: A093246 A093247 A093248 * A093250 A093251 A093252

Keyword

base,nonn

Author

Hans Havermann, Mar 29 2004

Extensions

a(11)-a(14) from John Cerkan, Jan 08 2018

Status

approved