A248951 - cp's OEIS frontend

A248951 Decimal expansion of sum_{n >= 1} (tan(2/n))^2.

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

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

cp's OEIS Frontend

A248951 Decimal expansion of sum_{n >= 1} (tan(2/n))^2.

Table of values

List of values

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

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

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