A013705 - cp's OEIS frontend

A013705 Decimal expansion of 4*Sum_{k=1..500000} (-1)^(k-1)/(2k-1).

n	a(n)
1	3
2	1
3	4
4	1
5	5
6	9
7	0
8	6
9	5
10	3
11	5
12	8
13	9
14	7
15	9
16	3
17	2
18	4
19	0
20	4
21	6
22	2
23	6
24	4
25	3
26	3
27	8
28	3
29	2
30	6
31	9
32	5
33	0
34	2
35	8
36	8
37	4
38	1
39	9
40	7
41	2
42	9
43	1
44	3
45	9
46	9
47	3
48	7
49	5
50	1
51	0
52	3
53	0
54	5
55	0
56	9
57	7
58	4
59	9
60	4
61	4
62	6
63	9
64	3
65	3
66	4
67	9
68	8
69	1
70	6
71	4
72	0
73	0
74	8
75	8
76	0
77	6
78	7
79	8
80	9
81	9
82	9
83	0
84	2
85	6
86	7
87	5
88	6
89	7
90	8
91	7
92	3
93	0
94	3
95	3
96	3
97	4
98	0
99	4
100	3
101	6
102	9
103	6
104	9
105	5

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

cp's OEIS Frontend

A013705 Decimal expansion of 4*Sum_{k=1..500000} (-1)^(k-1)/(2k-1).

Table of values

List of values

n	a(n)
1	3
2	1
3	4
4	1
5	5
6	9
7	0
8	6
9	5
10	3
11	5
12	8
13	9
14	7
15	9
16	3
17	2
18	4
19	0
20	4
21	6
22	2
23	6
24	4
25	3
26	3
27	8
28	3
29	2
30	6
31	9
32	5
33	0
34	2
35	8
36	8
37	4
38	1
39	9
40	7
41	2
42	9
43	1
44	3
45	9
46	9
47	3
48	7
49	5
50	1
51	0
52	3
53	0
54	5
55	0
56	9
57	7
58	4
59	9
60	4
61	4
62	6
63	9
64	3
65	3
66	4
67	9
68	8
69	1
70	6
71	4
72	0
73	0
74	8
75	8
76	0
77	6
78	7
79	8
80	9
81	9
82	9
83	0
84	2
85	6
86	7
87	5
88	6
89	7
90	8
91	7
92	3
93	0
94	3
95	3
96	3
97	4
98	0
99	4
100	3
101	6
102	9
103	6
104	9
105	5

n	a(n)
1	3
2	1
3	4
4	1
5	5
6	9
7	0
8	6
9	5
10	3
11	5
12	8
13	9
14	7
15	9
16	3
17	2
18	4
19	0
20	4
21	6
22	2
23	6
24	4
25	3
26	3
27	8
28	3
29	2
30	6
31	9
32	5
33	0
34	2
35	8
36	8
37	4
38	1
39	9
40	7
41	2
42	9
43	1
44	3
45	9
46	9
47	3
48	7
49	5
50	1
51	0
52	3
53	0
54	5
55	0
56	9
57	7
58	4
59	9
60	4
61	4
62	6
63	9
64	3
65	3
66	4
67	9
68	8
69	1
70	6
71	4
72	0
73	0
74	8
75	8
76	0
77	6
78	7
79	8
80	9
81	9
82	9
83	0
84	2
85	6
86	7
87	5
88	6
89	7
90	8
91	7
92	3
93	0
94	3
95	3
96	3
97	4
98	0
99	4
100	3
101	6
102	9
103	6
104	9
105	5

n	a(n)
1	3
2	1
3	4
4	1
5	5
6	9
7	0
8	6
9	5
10	3
11	5
12	8
13	9
14	7
15	9
16	3
17	2
18	4
19	0
20	4
21	6
22	2
23	6
24	4
25	3
26	3
27	8
28	3
29	2
30	6
31	9
32	5
33	0
34	2
35	8
36	8
37	4
38	1
39	9
40	7
41	2
42	9
43	1
44	3
45	9
46	9
47	3
48	7
49	5
50	1
51	0
52	3
53	0
54	5
55	0
56	9
57	7
58	4
59	9
60	4
61	4
62	6
63	9
64	3
65	3
66	4
67	9
68	8
69	1
70	6
71	4
72	0
73	0
74	8
75	8
76	0
77	6
78	7
79	8
80	9
81	9
82	9
83	0
84	2
85	6
86	7
87	5
88	6
89	7
90	8
91	7
92	3
93	0
94	3
95	3
96	3
97	4
98	0
99	4
100	3
101	6
102	9
103	6
104	9
105	5