A088991 - cp's OEIS frontend

A088991 Derangement numbers d(n,4) where d(n,k) = k(n-1)(d(n-1,k) + d(n-2,k)), with d(0,k) = 1 and d(1,k) = 0.

n	a(n)
0	1
1	0
2	4
3	32
4	432
5	7424
6	157120
7	3949056
8	114972928
9	3805503488
10	141137150976
11	5797706178560
12	261309106499584
13	12821127008550912
14	680286677982625792
15	38814037079505895424
16	2369659425449311272960
17	154142301601844298776576
18	10642813349855965483368448

[1, 0, 4, 32, 432, 7424, 157120, 3949056, 114972928, 3805503488, 141137150976, 5797706178560, 261309106499584, 12821127008550912, 680286677982625792, 38814037079505895424, 2369659425449311272960, 154142301601844298776576, 10642813349855965483368448]

cp's OEIS Frontend

A088991 Derangement numbers d(n,4) where d(n,k) = k(n-1)(d(n-1,k) + d(n-2,k)), with d(0,k) = 1 and d(1,k) = 0.

Table of values

List of values