A374813 - cp's OEIS frontend

A374813 Decimal expansion of Sum_{k>=0} cos(2k*Pi/5)/2^k.

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

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

cp's OEIS Frontend

A374813 Decimal expansion of Sum_{k>=0} cos(2k*Pi/5)/2^k.

Table of values

List of values

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

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

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