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A093299 a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 99. 88
0, 99, 990, 9900990, 99990, 99990099990, 9999990, 999999009999990, 999999990, 9999999900999999990, 99999999990, 99999999990099999999990, 9999999999990 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Hans Havermann, Table of A093211-A093299
EXAMPLE
a(4) is 9900990 because its length-4 substrings 9900, 9009, 0099, 0990) are all distinct and divisible by 99 and there is no larger number with this property
CROSSREFS
Cf. A093211, A093212, ..., A093298.
Sequence in context: A223157 A223155 A308466 * A196645 A196600 A074786
KEYWORD
base,nonn,more
AUTHOR
Hans Havermann, Mar 29 2004
EXTENSIONS
a(9)-a(13) from John Cerkan, Jun 14 2017
STATUS
approved

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)