A340188 - cp's OEIS frontend

A340188 Sum of A063994 and its Dirichlet inverse, where A063994(x) = Product_{primes p dividing x} gcd(p-1, x-1).

n	a(n)
1	2
2	0
3	0
4	1
5	0
6	4
7	0
8	1
9	4
10	8
11	0
12	0
13	0
14	12
15	16
16	1
17	0
18	-4
19	0
20	-2
21	24
22	20
23	0
24	1
25	16
26	24
27	0
28	-4
29	0
30	-28
31	0
32	1
33	40
34	32
35	48
36	5
37	0
38	36
39	48
40	1
41	0
42	-48
43	0
44	-8
45	-16
46	44
47	0
48	1
49	36
50	-32
51	64
52	-10
53	0
54	8
55	80
56	5
57	72
58	56
59	0
60	24
61	0
62	60
63	-32
64	1
65	96
66	-88
67	0
68	-14
69	88
70	-116
71	0
72	0
73	0
74	72
75	-48
76	-16
77	120
78	-108
79	0
80	1
81	4
82	80
83	0
84	48
85	128
86	84
87	112

[2, 0, 0, 1, 0, 4, 0, 1, 4, 8, 0, 0, 0, 12, 16, 1, 0, -4, 0, -2, 24, 20, 0, 1, 16, 24, 0, -4, 0, -28, 0, 1, 40, 32, 48, 5, 0, 36, 48, 1, 0, -48, 0, -8, -16, 44, 0, 1, 36, -32, 64, -10, 0, 8, 80, 5, 72, 56, 0, 24, 0, 60, -32, 1, 96, -88, 0, -14, 88, -116, 0, 0, 0, 72, -48, -16, 120, -108, 0, 1, 4, 80, 0, 48, 128, 84, 112]

cp's OEIS Frontend

A340188 Sum of A063994 and its Dirichlet inverse, where A063994(x) = Product_{primes p dividing x} gcd(p-1, x-1).

Table of values

List of values