A269611 - cp's OEIS frontend

A269611 Decimal expansion of Sum_{n>=1} (sin(Pi/n))^2.

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

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

cp's OEIS Frontend

A269611 Decimal expansion of Sum_{n>=1} (sin(Pi/n))^2.

Table of values

List of values

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

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

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