A382645 - cp's OEIS frontend

A382645 Number of king permutations on n elements not beginning with the smallest element and not ending with the largest element.

n	a(n)
0	1
1	0
2	0
3	0
4	2
5	10
6	68
7	500
8	4174
9	38774
10	397584
11	4462848
12	54455754
13	717909202
14	10171232060
15	154142811052
16	2488421201446
17	42636471916622
18	772807552752712
19	14774586965277816
20	297138592463202402
21	6271277634164008170
22	138596853553771517492
23	3200958202120445923684
24	77114612783976599209598

[1, 0, 0, 0, 2, 10, 68, 500, 4174, 38774, 397584, 4462848, 54455754, 717909202, 10171232060, 154142811052, 2488421201446, 42636471916622, 772807552752712, 14774586965277816, 297138592463202402, 6271277634164008170, 138596853553771517492, 3200958202120445923684, 77114612783976599209598]

cp's OEIS Frontend

A382645 Number of king permutations on n elements not beginning with the smallest element and not ending with the largest element.

Table of values

List of values