A372367 - cp's OEIS frontend

A372367 Decimal expansion of Sum_{k>=0} (-1)^k*(k+1) / (k^2+1).

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

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

cp's OEIS Frontend

A372367 Decimal expansion of Sum_{k>=0} (-1)^k*(k+1) / (k^2+1).

Table of values

List of values

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

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

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