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Search: id:A002527
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| A002527 |
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Number of permutations according to distance.
(Formerly M1626 N0637)
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+0
1
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| 0, 1, 2, 6, 18, 60, 184, 560, 1695, 5200, 15956, 48916
(list; graph; listen)
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OFFSET
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0,3
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
R. Lagrange, Quelques re'sultats dans la me'trique des permutations, Annales Scientifiques de l'\'{E}cole Normale Sup\'{e}rieure, Paris, 79 (1962), 199-241.
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LINKS
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R. Lagrange, Quelques re'sultats dans la me'trique des permutations, Annales Scientifiques de l'\'{E}cole Normale Sup\'{e}rieure, Paris, 79 (1962), 199-241.
Torleiv Klove, Spheres of Permutations under the Infinity Norm - Permutations with limited displacement. Reports in Informatics, Department of Informatics, University of Bergen, Norway, no. 376, November 2008.
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CROSSREFS
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Sequence in context: A121320 A148460 A148461 this_sequence A005566 A005631 A118677
Adjacent sequences: A002524 A002525 A002526 this_sequence A002528 A002529 A002530
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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