A344437 - cp's OEIS frontend

A344437 Regular triangle read by rows, T(n,k) is the number of derangements of [n] with exactly k right-to-left minima, for n >= 2 and 1 <= k <= n-1.

n	a(n)
2	1
3	1
4	1
5	3
6	5
7	1
8	11
9	21
10	11
11	1
12	53
13	113
14	79
15	19
16	1
17	309
18	715
19	589
20	211
21	29
22	1
23	2119
24	5235
25	4835
26	2141
27	461
28	41
29	1
30	16687
31	43507
32	43831
33	22357
34	6175
35	883
36	55
37	1
38	148329
39	404699
40	437079
41	247549
42	80531
43	15161
44	1541
45	71
46	1
47	1468457
48	4165965
49	4765971
50	2931193
51	1074701
52	242617
53	33067
54	2509
55	89
56	1

[1, 1, 1, 3, 5, 1, 11, 21, 11, 1, 53, 113, 79, 19, 1, 309, 715, 589, 211, 29, 1, 2119, 5235, 4835, 2141, 461, 41, 1, 16687, 43507, 43831, 22357, 6175, 883, 55, 1, 148329, 404699, 437079, 247549, 80531, 15161, 1541, 71, 1, 1468457, 4165965, 4765971, 2931193, 1074701, 242617, 33067, 2509, 89, 1]

cp's OEIS Frontend

A344437 Regular triangle read by rows, T(n,k) is the number of derangements of [n] with exactly k right-to-left minima, for n >= 2 and 1 <= k <= n-1.

Table of values

List of values