A239725 - cp's OEIS frontend

A239725 Decimal expansion of sum(1/k^(phi(k)), k=1..infinity), where phi(n) is the Euler totient function.

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

[1, 7, 0, 3, 3, 9, 1, 7, 9, 9, 2, 8, 1, 5, 3, 0, 5, 4, 5, 3, 0, 5, 2, 0, 4, 8, 3, 9, 4, 1, 9, 5, 8, 4, 9, 2, 8, 8, 8, 3, 0, 6, 2, 6, 5, 1, 9, 4, 5, 0, 5, 5, 4, 1, 2, 9, 1, 4, 5, 8, 2, 5, 3, 1, 0, 7, 8, 6, 2, 1, 7, 6, 3, 5, 5, 1, 2, 0, 5, 6, 4, 3, 4, 7, 7, 9, 0]

cp's OEIS Frontend

A239725 Decimal expansion of sum(1/k^(phi(k)), k=1..infinity), where phi(n) is the Euler totient function.

Table of values

List of values

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

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

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