A263484 - cp's OEIS frontend

A263484 Triangle read by rows: T(n,k) (n>=1, 0<=k is the number of permutations of n elements with n-k elements in its connectivity set.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	3
7	1
8	3
9	7
10	13
11	1
12	4
13	12
14	32
15	71
16	1
17	5
18	18
19	58
20	177
21	461
22	1
23	6
24	25
25	92
26	327
27	1142
28	3447
29	1
30	7
31	33
32	135
33	531
34	2109
35	8411
36	29093
37	1
38	8
39	42
40	188
41	800
42	3440
43	15366
44	69692
45	273343
46	1
47	9
48	52
49	252
50	1146
51	5226
52	24892
53	125316
54	642581
55	2829325

[1, 1, 1, 1, 2, 3, 1, 3, 7, 13, 1, 4, 12, 32, 71, 1, 5, 18, 58, 177, 461, 1, 6, 25, 92, 327, 1142, 3447, 1, 7, 33, 135, 531, 2109, 8411, 29093, 1, 8, 42, 188, 800, 3440, 15366, 69692, 273343, 1, 9, 52, 252, 1146, 5226, 24892, 125316, 642581, 2829325]

cp's OEIS Frontend

A263484 Triangle read by rows: T(n,k) (n>=1, 0<=k is the number of permutations of n elements with n-k elements in its connectivity set.

Table of values

List of values