|
Search: id:A137730
|
|
|
| A137730 |
|
Number of circular permutations of the multiset {1,1,2,2,...,n,n} (up to rotations) with odd distances between equal elements. |
|
+0
5
|
|
| 1, 1, 7, 72, 1452, 43200, 1814760, 101606400, 7315680960, 658409472000, 72425043734400, 9560105533440000, 1491376463456140800, 271430516305428480000, 57000408424183569945600, 13680098021793595392000000, 3720986661927868408018944000, 1138621918549924531666944000000
(list; graph; listen)
|
|
|
|
|
Search completed in 0.002 seconds
|
