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Search: id:A165305
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| A165305 |
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Minimum number n, not already present, that permits the cyclic repetition of the path 1,2,3,4,5,6,7 of the digits in the sequence. |
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+0
3
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| 1, 2, 3, 4, 5, 6, 7, 12, 34, 56, 71, 23, 45, 67, 123, 456, 712, 345, 671, 234, 567, 1234, 5671, 2345, 6712, 3456, 7123, 4567, 12345, 67123, 45671, 23456, 71234, 56712, 34567, 123456, 712345, 671234, 567123, 456712, 345671, 234567, 1234567
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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Starting from 1,2,3,4,5,6,7 the next number must be 12 because after 1,2,3,4,5,6,7 we shall continue with a 1. But 1 is already in the sequence so we need to add a 2 -> 12. And so on.
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CROSSREFS
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A165300-A165304, A165306, A165307
Sequence in context: A039952 A129978 A033079 this_sequence A125745 A032990 A060810
Adjacent sequences: A165302 A165303 A165304 this_sequence A165306 A165307 A165308
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KEYWORD
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easy,nonn,uned
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AUTHOR
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Paolo P. Lava & Giorgio Balzarotti (ppl(AT)spl.at), Sep 14 2009
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