A326390 - cp's OEIS frontend

A326390 The number of ways of seating n people around a table for the second time so that k pairs are maintained. T(n,k) read by rows.

n	a(n)
0	1
1	0
2	1
3	0
4	0
5	2
6	0
7	0
8	0
9	6
10	0
11	0
12	16
13	0
14	8
15	10
16	0
17	50
18	50
19	0
20	10
21	36
22	144
23	180
24	240
25	108
26	0
27	12
28	322
29	980
30	1568
31	1274
32	686
33	196
34	0
35	14
36	2832
37	8704
38	11840
39	10240
40	4832
41	1536
42	320
43	0
44	16
45	27954
46	81000
47	108054
48	85050
49	43902
50	13446
51	2970
52	486
53	0
54	18
55	299260
56	834800
57	1071700
58	828400
59	416200
60	141520
61	31000
62	5200
63	700
64	0
65	20

[1, 0, 1, 0, 0, 2, 0, 0, 0, 6, 0, 0, 16, 0, 8, 10, 0, 50, 50, 0, 10, 36, 144, 180, 240, 108, 0, 12, 322, 980, 1568, 1274, 686, 196, 0, 14, 2832, 8704, 11840, 10240, 4832, 1536, 320, 0, 16, 27954, 81000, 108054, 85050, 43902, 13446, 2970, 486, 0, 18, 299260, 834800, 1071700, 828400, 416200, 141520, 31000, 5200, 700, 0, 20]

cp's OEIS Frontend

A326390 The number of ways of seating n people around a table for the second time so that k pairs are maintained. T(n,k) read by rows.

Table of values

List of values