A339942 - cp's OEIS frontend

A339942 Triangle read by rows: T(n,k) is the number of permutations of the cyclic group Z/nZ whose longest embedded arithmetic progression has length k.

n	a(n)
1	1
2	0
3	2
4	0
5	0
6	6
7	0
8	8
9	8
10	8
11	0
12	0
13	40
14	60
15	20
16	0
17	0
18	468
19	192
20	48
21	12
22	0
23	0
24	462
25	3150
26	1176
27	210
28	42
29	0
30	128
31	4192
32	27872
33	6592
34	1312
35	192
36	32
37	0
38	0
39	57402
40	182790
41	99630
42	19656
43	2970
44	378
45	54
46	0
47	0
48	67440
49	1795320
50	1594640
51	146200
52	22000
53	2840
54	320
55	40
56	0
57	0
58	61050
59	17433130
60	17373620
61	4289340
62	662860
63	85910
64	9790
65	990
66	110

[1, 0, 2, 0, 0, 6, 0, 8, 8, 8, 0, 0, 40, 60, 20, 0, 0, 468, 192, 48, 12, 0, 0, 462, 3150, 1176, 210, 42, 0, 128, 4192, 27872, 6592, 1312, 192, 32, 0, 0, 57402, 182790, 99630, 19656, 2970, 378, 54, 0, 0, 67440, 1795320, 1594640, 146200, 22000, 2840, 320, 40, 0, 0, 61050, 17433130, 17373620, 4289340, 662860, 85910, 9790, 990, 110]

cp's OEIS Frontend

A339942 Triangle read by rows: T(n,k) is the number of permutations of the cyclic group Z/nZ whose longest embedded arithmetic progression has length k.

Table of values

List of values