A320016 - cp's OEIS frontend

A320016 a(1) = a(2) = 1; for n > 2, a(n) = A000005(n) * a(A000005(n)), where A000005(n) gives the number of divisors of n.

n	a(n)
1	1
2	1
3	2
4	6
5	2
6	24
7	2
8	24
9	6
10	24
11	2
12	144
13	2
14	24
15	24
16	10
17	2
18	144
19	2
20	144
21	24
22	24
23	2
24	192
25	6
26	24
27	24
28	144
29	2
30	192
31	2
32	144
33	24
34	24
35	24
36	54
37	2
38	24
39	24
40	192
41	2
42	192
43	2
44	144
45	144
46	24
47	2
48	240
49	6
50	144
51	24
52	144
53	2
54	192
55	24
56	192
57	24
58	24
59	2
60	1728
61	2
62	24
63	144
64	14
65	24
66	192
67	2
68	144
69	24
70	192
71	2
72	1728
73	2
74	24
75	144
76	144
77	24
78	192
79	2
80	240
81	10
82	24
83	2
84	1728

[1, 1, 2, 6, 2, 24, 2, 24, 6, 24, 2, 144, 2, 24, 24, 10, 2, 144, 2, 144, 24, 24, 2, 192, 6, 24, 24, 144, 2, 192, 2, 144, 24, 24, 24, 54, 2, 24, 24, 192, 2, 192, 2, 144, 144, 24, 2, 240, 6, 144, 24, 144, 2, 192, 24, 192, 24, 24, 2, 1728, 2, 24, 144, 14, 24, 192, 2, 144, 24, 192, 2, 1728, 2, 24, 144, 144, 24, 192, 2, 240, 10, 24, 2, 1728]

cp's OEIS Frontend

A320016 a(1) = a(2) = 1; for n > 2, a(n) = A000005(n) * a(A000005(n)), where A000005(n) gives the number of divisors of n.

Table of values

List of values