A387454 - cp's OEIS frontend

A387454 Decimal expansion of cos(Pi/21).

n	a(n)
0	9
1	8
2	8
3	8
4	3
5	0
6	8
7	2
8	6
9	2
10	2
11	5
12	1
13	2
14	8
15	5
16	4
17	5
18	0
19	6
20	9
21	7
22	4
23	2
24	8
25	8
26	2
27	9
28	3
29	4
30	0
31	0
32	8
33	6
34	1
35	3
36	0
37	6
38	5
39	2
40	5
41	1
42	0
43	1
44	3
45	5
46	7
47	4
48	1
49	8
50	7
51	7
52	0
53	6
54	3
55	9
56	9
57	4
58	9
59	6
60	9
61	2
62	7
63	1
64	6
65	0
66	2
67	1
68	3
69	5
70	3
71	3
72	0
73	9
74	8
75	7
76	2
77	6
78	0
79	9
80	9
81	2
82	4
83	9
84	3
85	4
86	3
87	1
88	8
89	9
90	9
91	6
92	8
93	1
94	7
95	4
96	1
97	9
98	3
99	0
100	8
101	6
102	8
103	8
104	8
105	7
106	1
107	7
108	9
109	1
110	2
111	9
112	1
113	6
114	1
115	0
116	5
117	1

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

cp's OEIS Frontend

A387454 Decimal expansion of cos(Pi/21).

Table of values

List of values

n	a(n)
0	9
1	8
2	8
3	8
4	3
5	0
6	8
7	2
8	6
9	2
10	2
11	5
12	1
13	2
14	8
15	5
16	4
17	5
18	0
19	6
20	9
21	7
22	4
23	2
24	8
25	8
26	2
27	9
28	3
29	4
30	0
31	0
32	8
33	6
34	1
35	3
36	0
37	6
38	5
39	2
40	5
41	1
42	0
43	1
44	3
45	5
46	7
47	4
48	1
49	8
50	7
51	7
52	0
53	6
54	3
55	9
56	9
57	4
58	9
59	6
60	9
61	2
62	7
63	1
64	6
65	0
66	2
67	1
68	3
69	5
70	3
71	3
72	0
73	9
74	8
75	7
76	2
77	6
78	0
79	9
80	9
81	2
82	4
83	9
84	3
85	4
86	3
87	1
88	8
89	9
90	9
91	6
92	8
93	1
94	7
95	4
96	1
97	9
98	3
99	0
100	8
101	6
102	8
103	8
104	8
105	7
106	1
107	7
108	9
109	1
110	2
111	9
112	1
113	6
114	1
115	0
116	5
117	1

n	a(n)
0	9
1	8
2	8
3	8
4	3
5	0
6	8
7	2
8	6
9	2
10	2
11	5
12	1
13	2
14	8
15	5
16	4
17	5
18	0
19	6
20	9
21	7
22	4
23	2
24	8
25	8
26	2
27	9
28	3
29	4
30	0
31	0
32	8
33	6
34	1
35	3
36	0
37	6
38	5
39	2
40	5
41	1
42	0
43	1
44	3
45	5
46	7
47	4
48	1
49	8
50	7
51	7
52	0
53	6
54	3
55	9
56	9
57	4
58	9
59	6
60	9
61	2
62	7
63	1
64	6
65	0
66	2
67	1
68	3
69	5
70	3
71	3
72	0
73	9
74	8
75	7
76	2
77	6
78	0
79	9
80	9
81	2
82	4
83	9
84	3
85	4
86	3
87	1
88	8
89	9
90	9
91	6
92	8
93	1
94	7
95	4
96	1
97	9
98	3
99	0
100	8
101	6
102	8
103	8
104	8
105	7
106	1
107	7
108	9
109	1
110	2
111	9
112	1
113	6
114	1
115	0
116	5
117	1

n	a(n)
0	9
1	8
2	8
3	8
4	3
5	0
6	8
7	2
8	6
9	2
10	2
11	5
12	1
13	2
14	8
15	5
16	4
17	5
18	0
19	6
20	9
21	7
22	4
23	2
24	8
25	8
26	2
27	9
28	3
29	4
30	0
31	0
32	8
33	6
34	1
35	3
36	0
37	6
38	5
39	2
40	5
41	1
42	0
43	1
44	3
45	5
46	7
47	4
48	1
49	8
50	7
51	7
52	0
53	6
54	3
55	9
56	9
57	4
58	9
59	6
60	9
61	2
62	7
63	1
64	6
65	0
66	2
67	1
68	3
69	5
70	3
71	3
72	0
73	9
74	8
75	7
76	2
77	6
78	0
79	9
80	9
81	2
82	4
83	9
84	3
85	4
86	3
87	1
88	8
89	9
90	9
91	6
92	8
93	1
94	7
95	4
96	1
97	9
98	3
99	0
100	8
101	6
102	8
103	8
104	8
105	7
106	1
107	7
108	9
109	1
110	2
111	9
112	1
113	6
114	1
115	0
116	5
117	1