A350227 - cp's OEIS frontend

A350227 Triangular array read by rows. T(n,k) is the number of partial permutations on [n] with exactly k connected components, n>=0, 0<=k<=n.

n	a(n)
0	1
1	0
2	2
3	0
4	3
5	4
6	0
7	8
8	18
9	8
10	0
11	30
12	91
13	72
14	16
15	0
16	144
17	540
18	590
19	240
20	32
21	0
22	840
23	3718
24	5085
25	2900
26	720
27	64
28	0
29	5760
30	29232
31	47516
32	34230
33	12040
34	2016
35	128
36	0
37	45360
38	258732
39	484092
40	416857
41	186480
42	44576
43	5376
44	256
45	0
46	403200
47	2547360
48	5368184
49	5340888
50	2869314
51	876960
52	151872
53	13824
54	512

[1, 0, 2, 0, 3, 4, 0, 8, 18, 8, 0, 30, 91, 72, 16, 0, 144, 540, 590, 240, 32, 0, 840, 3718, 5085, 2900, 720, 64, 0, 5760, 29232, 47516, 34230, 12040, 2016, 128, 0, 45360, 258732, 484092, 416857, 186480, 44576, 5376, 256, 0, 403200, 2547360, 5368184, 5340888, 2869314, 876960, 151872, 13824, 512]

cp's OEIS Frontend

A350227 Triangular array read by rows. T(n,k) is the number of partial permutations on [n] with exactly k connected components, n>=0, 0<=k<=n.

Table of values

List of values