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A030298
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List of permutations of 1,2,3,...,n for n=1,2,3,..., in lexicographic order.
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25
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1, 1, 2, 2, 1, 1, 2, 3, 1, 3, 2, 2, 1, 3, 2, 3, 1, 3, 1, 2, 3, 2, 1, 1, 2, 3, 4, 1, 2, 4, 3, 1, 3, 2, 4, 1, 3, 4, 2, 1, 4, 2, 3, 1, 4, 3, 2, 2, 1, 3, 4, 2, 1, 4, 3, 2, 3, 1, 4, 2, 3, 4, 1, 2, 4, 1, 3, 2, 4, 3, 1, 3, 1, 2, 4, 3, 1, 4, 2, 3, 2, 1, 4, 3, 2, 4, 1, 3, 4, 1, 2, 3, 4, 2, 1, 4, 1, 2, 3, 4, 1, 3, 2, 4, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| Contains every finite sequence of distinct numbers...infinitely many times.
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FORMULA
| Start with 1, then 12 and 21, then the 6 permutations of 123 in lexical order: 123, 132, 213, 231, 312, 321 and so on.
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EXAMPLE
| The permutations can be written as
1,
12, 21,
123, 132, 213, 231, 312, 321, etc.
Write them in order and insert commas.
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CROSSREFS
| Cf. A098280, A098281, A030299, A170942.
Sequence in context: A016533 A122915 A182592 * A098281 A103343 A085263
Adjacent sequences: A030295 A030296 A030297 * A030299 A030300 A030301
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KEYWORD
| nonn
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
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EXTENSIONS
| Entry revised Feb 02 2006 by N. J. A. Sloane (njas(AT)research.att.com).
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