A033030 - cp's OEIS frontend

A033030 Derangement numbers d(n,3) 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	3
3	18
4	189
5	2484
6	40095
7	766422
8	16936857
9	424878696
10	11929019931
11	370616958810
12	12624017298453
13	467806833261468
14	18736803171836919
15	806593620214132254
16	37139869052368612785
17	1821430208283971761872
18	94787073944153359107507
19	5216859224231615866946466

[1, 0, 3, 18, 189, 2484, 40095, 766422, 16936857, 424878696, 11929019931, 370616958810, 12624017298453, 467806833261468, 18736803171836919, 806593620214132254, 37139869052368612785, 1821430208283971761872, 94787073944153359107507, 5216859224231615866946466]

cp's OEIS Frontend

A033030 Derangement numbers d(n,3) 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