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Search: id:A093281
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| A093281 |
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a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 81. |
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+0
1
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| 0, 81, 9729, 996399, 99954999, 99630099630, 999993699999, 99999927999999, 99999991899999991, 9999999990999999999
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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Hans Havermann, Table of A093211-A093299
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EXAMPLE
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a(4) is 996399 because its length-4 substrings (9963, 9639, 6399) are all distinct and divisible by 81, and there is no larger number with this property
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CROSSREFS
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Cf. A093211, A093212, ..., A093299.
Sequence in context: A123847 A115443 A034993 this_sequence A059988 A017020 A058422
Adjacent sequences: A093278 A093279 A093280 this_sequence A093282 A093283 A093284
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KEYWORD
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base,nonn
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AUTHOR
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Hans Havermann (pxp(AT)rogers.com), Mar 29 2004
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