A334071 - cp's OEIS frontend

A334071 Decimal expansion of Sum_{k >= 1} 2^(-phi(k)), where phi is the Euler totient function (A000010).

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

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

cp's OEIS Frontend

A334071 Decimal expansion of Sum_{k >= 1} 2^(-phi(k)), where phi is the Euler totient function (A000010).

Table of values

List of values

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

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

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