|
Search: id:A004204
|
|
|
| A004204 |
|
Number of permutations of length n with spread 0.
(Formerly M3569)
|
|
+0
1
|
|
| 1, 1, 0, 4, 20, 144, 630, 5696, 39366, 366400, 3634950, 39066624, 479163828, 6226534272, 87238701000, 1315130458112, 20922813624336, 355586138666496, 6402373841107998, 121479626301440000
(list; graph; listen)
|
|
|
OFFSET
|
1,4
|
|
|
REFERENCES
|
Graham, R. L.; Lehmer, D. H. On the permanent of Schur's matrix. J. Austral. Math. Soc. Ser. A 21 (1976), no. 4, 487-497.
|
|
LINKS
|
Graham, R. L.; Lehmer, D. H., On the Permanent of Schur's Matrix, Jour. Australian Math. Soc. 21 (series A) (1976), 487-497.
|
|
CROSSREFS
|
Adjacent sequences: A004201 A004202 A004203 this_sequence A004205 A004206 A004207
Sequence in context: A129102 A129099 A098541 this_sequence A034216 A117887 A082988
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
njas
|
|
EXTENSIONS
|
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 17 2007
|
|
|
Search completed in 0.002 seconds
|
