A374815 - cp's OEIS frontend

A374815 Decimal expansion of Sum_{k>=0} cos(4k*Pi/5)/2^k.

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

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

cp's OEIS Frontend

A374815 Decimal expansion of Sum_{k>=0} cos(4k*Pi/5)/2^k.

Table of values

List of values

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

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

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