A214849 - cp's OEIS frontend

A214849 Number of n-permutations having all cycles of odd length and at most one fixed point.

n	a(n)
0	1
1	1
2	0
3	2
4	8
5	24
6	184
7	1000
8	8448
9	66752
10	670976
11	6771456
12	80540800
13	981684352
14	13555365888
15	193136762624
16	3042586824704
17	49558509465600
18	877951349198848
19	16081833643651072
20	316609129672114176
21	6439690754082062336
22	139521103623589068800

[1, 1, 0, 2, 8, 24, 184, 1000, 8448, 66752, 670976, 6771456, 80540800, 981684352, 13555365888, 193136762624, 3042586824704, 49558509465600, 877951349198848, 16081833643651072, 316609129672114176, 6439690754082062336, 139521103623589068800]

cp's OEIS Frontend

A214849 Number of n-permutations having all cycles of odd length and at most one fixed point.

Table of values

List of values