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A154657
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Number of permutations of length n within distance 8
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3
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1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 2943360, 21898800, 152622000, 1017952680, 6623303544, 42700751022, 276054834902, 1805409270031, 12020754177001, 80930279045116, 548117873866228, 3720269813727312
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| a(n) equals the permanent of the nXn matrix with 1's along the central seventeen diagonals, and 0's everywhere else. [From John M. Campbell, Jul 10 2011]
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LINKS
| R. H. Hardin, Table of n, a(n) for n=1..177, Jul 11 2010
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
| Cf. A000045, A002524, A002526, A072856, A154654..A154656
Sequence in context: A062919 A177280 A173849 * A179361 A179368 A152693
Adjacent sequences: A154654 A154655 A154656 * A154658 A154659 A154660
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KEYWORD
| nonn
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AUTHOR
| Torleiv Klove (Torleiv.Klove(AT)ii.uib.no), Jan 13 2009
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