A269574 - cp's OEIS frontend

A269574 Decimal expansion of Sum_{n>=1} (1-cos(Pi/n)).

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

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

cp's OEIS Frontend

A269574 Decimal expansion of Sum_{n>=1} (1-cos(Pi/n)).

Table of values

List of values

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

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

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