A197581 - cp's OEIS frontend

A197581 Decimal expansion of least x > 0 having cos(Pi*x/2) = cos(x/2)^2.

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

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

cp's OEIS Frontend

A197581 Decimal expansion of least x > 0 having cos(Pi*x/2) = cos(x/2)^2.

Table of values

List of values

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

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

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