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A093251 a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 51. 0
0, 51, 5612, 11224488, 9990933303, 666060333030, 77777551111188, 99999984, 888888180555555750, 33333030336666606066, 7777777730744444444904, 888888888084222222222021, 22222202002025555550500505, 99999999999975, 999999999990009666666666660006 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

Hans Havermann, Table of A093211-A093299

EXAMPLE

a(4) is 11224488 because its length-4 substrings (1122, 1224, 2244, 2448, 4488) are all distinct and divisible by 51 and there is no larger number with this property.

CROSSREFS

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

Sequence in context: A015271 A221116 A099397 * A184282 A232278 A208350

Adjacent sequences:  A093248 A093249 A093250 * A093252 A093253 A093254

KEYWORD

base,nonn

AUTHOR

Hans Havermann, Mar 29 2004

EXTENSIONS

a(11)-a(15) from John Cerkan, Jan 08 2018

STATUS

approved

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Last modified April 5 09:46 EDT 2020. Contains 333239 sequences. (Running on oeis4.)