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Search: id:A136094
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| A136094 |
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a(n) is the shortest substring containing all the permutations of {1,...,n} as (not necessarily adjacent) substrings. |
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2
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| 1, 121, 1232123, 123412314213, 123454321234543212345, 1234565432123456543212345654321, 1234567654321234567654321234567654321234567
(list; graph; listen)
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