A373642 - cp's OEIS frontend

A373642 Decimal expansion of Sum_{k>=1} (sin(Pi/k))^(2k).

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

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

cp's OEIS Frontend

A373642 Decimal expansion of Sum_{k>=1} (sin(Pi/k))^(2k).

Table of values

List of values

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

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

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