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A093239 a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 39. 0
0, 78, 50780, 30039009, 2102184084, 99996099996, 88888802222220, 9999990033333300, 88888885855555558588888885, 55555530032222229009 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Hans Havermann, Table of A093211-A093299
EXAMPLE
a(3) is 50780 because its length-3 substrings (507, 078, 780) are all distinct and divisible by 39 and there is no larger number with this property
CROSSREFS
Cf. A093211, A093212, ..., A093299.
Sequence in context: A126998 A299712 A159402 * A299713 A064991 A265492
KEYWORD
base,nonn
AUTHOR
Hans Havermann, Mar 28 2004
STATUS
approved

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)