A154932 - cp's OEIS frontend

A154932 Decimal expansion of Sum_{q in A006881} 1/(q(q-1)) over the squarefree semiprimes q.

n	a(n)
0	0
1	7
2	1
3	6
4	0
5	6
6	0
7	1
8	5
9	3
10	6
11	4
12	0
13	6
14	2
15	9
16	5
17	0
18	6
19	8
20	9
21	0
22	1
23	4
24	9
25	0
26	5
27	2
28	3
29	3
30	2
31	7
32	8
33	5
34	7
35	0
36	0
37	3
38	2
39	9
40	7
41	7
42	5
43	7
44	7
45	4
46	9
47	6
48	7
49	6
50	4
51	7
52	6
53	6
54	9
55	9
56	6
57	8
58	8
59	1
60	5

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

cp's OEIS Frontend

A154932 Decimal expansion of Sum_{q in A006881} 1/(q(q-1)) over the squarefree semiprimes q.

Table of values

List of values

n	a(n)
0	0
1	7
2	1
3	6
4	0
5	6
6	0
7	1
8	5
9	3
10	6
11	4
12	0
13	6
14	2
15	9
16	5
17	0
18	6
19	8
20	9
21	0
22	1
23	4
24	9
25	0
26	5
27	2
28	3
29	3
30	2
31	7
32	8
33	5
34	7
35	0
36	0
37	3
38	2
39	9
40	7
41	7
42	5
43	7
44	7
45	4
46	9
47	6
48	7
49	6
50	4
51	7
52	6
53	6
54	9
55	9
56	6
57	8
58	8
59	1
60	5

n	a(n)
0	0
1	7
2	1
3	6
4	0
5	6
6	0
7	1
8	5
9	3
10	6
11	4
12	0
13	6
14	2
15	9
16	5
17	0
18	6
19	8
20	9
21	0
22	1
23	4
24	9
25	0
26	5
27	2
28	3
29	3
30	2
31	7
32	8
33	5
34	7
35	0
36	0
37	3
38	2
39	9
40	7
41	7
42	5
43	7
44	7
45	4
46	9
47	6
48	7
49	6
50	4
51	7
52	6
53	6
54	9
55	9
56	6
57	8
58	8
59	1
60	5

n	a(n)
0	0
1	7
2	1
3	6
4	0
5	6
6	0
7	1
8	5
9	3
10	6
11	4
12	0
13	6
14	2
15	9
16	5
17	0
18	6
19	8
20	9
21	0
22	1
23	4
24	9
25	0
26	5
27	2
28	3
29	3
30	2
31	7
32	8
33	5
34	7
35	0
36	0
37	3
38	2
39	9
40	7
41	7
42	5
43	7
44	7
45	4
46	9
47	6
48	7
49	6
50	4
51	7
52	6
53	6
54	9
55	9
56	6
57	8
58	8
59	1
60	5