A319356 - cp's OEIS frontend

A319356 a(n) = Product_{d|n, d prime(1+A003415(d)), where A003415(d) gives arithmetic derivative of d.

n	a(n)
1	1
2	2
3	2
4	6
5	2
6	18
7	2
8	66
9	6
10	18
11	2
12	2574
13	2
14	18
15	18
16	2706
17	2
18	3978
19	2
20	3762
21	18
22	18
23	2
24	6226506
25	6
26	18
27	102
28	5742
29	2
30	306774
31	2
32	370722
33	18
34	18
35	18
36	203956038
37	2
38	18
39	18
40	14961474
41	2
42	631098
43	2
44	8514
45	7038
46	18
47	2
48	168047170434
49	6
50	10602
51	18
52	10494
53	2
54	33626034
55	18
56	32252814
57	18
58	18
59	2
60	2529917014482
61	2
62	18
63	9486
64	155332518
65	18
66	1418742
67	2
68	14058
69	18
70	1219914
71	2

[1, 2, 2, 6, 2, 18, 2, 66, 6, 18, 2, 2574, 2, 18, 18, 2706, 2, 3978, 2, 3762, 18, 18, 2, 6226506, 6, 18, 102, 5742, 2, 306774, 2, 370722, 18, 18, 18, 203956038, 2, 18, 18, 14961474, 2, 631098, 2, 8514, 7038, 18, 2, 168047170434, 6, 10602, 18, 10494, 2, 33626034, 18, 32252814, 18, 18, 2, 2529917014482, 2, 18, 9486, 155332518, 18, 1418742, 2, 14058, 18, 1219914, 2]

cp's OEIS Frontend

A319356 a(n) = Product_{d|n, d prime(1+A003415(d)), where A003415(d) gives arithmetic derivative of d.

Table of values

List of values