A057740 - cp's OEIS frontend

A057740 Irregular triangle read by rows: T(n,k) is the number of elements of alternating group A_n having order k, for n >= 1, 1 <= k <= A051593(n).

n	a(n)
1	1
2	1
3	1
4	0
5	2
6	1
7	3
8	8
9	1
10	15
11	20
12	0
13	24
14	1
15	45
16	80
17	90
18	144
19	1
20	105
21	350
22	630
23	504
24	210
25	720
26	1
27	315
28	1232
29	3780
30	1344
31	5040
32	5760
33	0
34	0
35	0
36	0
37	0
38	0
39	0
40	2688
41	1
42	1323
43	5768
44	18900
45	3024
46	37800
47	25920
48	0
49	40320
50	9072
51	0
52	15120
53	0
54	0
55	24192

[1, 1, 1, 0, 2, 1, 3, 8, 1, 15, 20, 0, 24, 1, 45, 80, 90, 144, 1, 105, 350, 630, 504, 210, 720, 1, 315, 1232, 3780, 1344, 5040, 5760, 0, 0, 0, 0, 0, 0, 0, 2688, 1, 1323, 5768, 18900, 3024, 37800, 25920, 0, 40320, 9072, 0, 15120, 0, 0, 24192]

cp's OEIS Frontend

A057740 Irregular triangle read by rows: T(n,k) is the number of elements of alternating group A_n having order k, for n >= 1, 1 <= k <= A051593(n).

Table of values

List of values