A039921 - cp's OEIS frontend

A039921 Continued fraction expansion of w = 2*cos(Pi/7).

n	a(n)
0	1
1	1
2	4
3	20
4	2
5	3
6	1
7	6
8	10
9	5
10	2
11	2
12	1
13	2
14	2
15	1
16	18
17	1
18	1
19	3
20	2
21	1
22	2
23	1
24	2
25	1
26	39
27	2
28	1
29	1
30	1
31	13
32	1
33	2
34	1
35	30
36	1
37	1
38	1
39	3
40	2
41	5
42	4
43	1
44	5
45	1
46	5
47	1
48	2
49	1
50	1
51	94
52	6
53	2
54	19
55	11
56	1
57	60
58	1
59	1
60	50
61	2
62	1
63	1
64	8
65	53
66	1
67	3
68	1
69	6
70	3
71	2
72	1
73	5
74	1
75	1
76	3
77	4
78	636
79	1
80	2
81	1
82	3
83	3
84	7
85	9
86	1
87	2
88	10
89	3
90	1
91	22
92	1
93	119
94	3

[1, 1, 4, 20, 2, 3, 1, 6, 10, 5, 2, 2, 1, 2, 2, 1, 18, 1, 1, 3, 2, 1, 2, 1, 2, 1, 39, 2, 1, 1, 1, 13, 1, 2, 1, 30, 1, 1, 1, 3, 2, 5, 4, 1, 5, 1, 5, 1, 2, 1, 1, 94, 6, 2, 19, 11, 1, 60, 1, 1, 50, 2, 1, 1, 8, 53, 1, 3, 1, 6, 3, 2, 1, 5, 1, 1, 3, 4, 636, 1, 2, 1, 3, 3, 7, 9, 1, 2, 10, 3, 1, 22, 1, 119, 3]

cp's OEIS Frontend

A039921 Continued fraction expansion of w = 2*cos(Pi/7).

Table of values

List of values

n	a(n)
0	1
1	1
2	4
3	20
4	2
5	3
6	1
7	6
8	10
9	5
10	2
11	2
12	1
13	2
14	2
15	1
16	18
17	1
18	1
19	3
20	2
21	1
22	2
23	1
24	2
25	1
26	39
27	2
28	1
29	1
30	1
31	13
32	1
33	2
34	1
35	30
36	1
37	1
38	1
39	3
40	2
41	5
42	4
43	1
44	5
45	1
46	5
47	1
48	2
49	1
50	1
51	94
52	6
53	2
54	19
55	11
56	1
57	60
58	1
59	1
60	50
61	2
62	1
63	1
64	8
65	53
66	1
67	3
68	1
69	6
70	3
71	2
72	1
73	5
74	1
75	1
76	3
77	4
78	636
79	1
80	2
81	1
82	3
83	3
84	7
85	9
86	1
87	2
88	10
89	3
90	1
91	22
92	1
93	119
94	3

n	a(n)
0	1
1	1
2	4
3	20
4	2
5	3
6	1
7	6
8	10
9	5
10	2
11	2
12	1
13	2
14	2
15	1
16	18
17	1
18	1
19	3
20	2
21	1
22	2
23	1
24	2
25	1
26	39
27	2
28	1
29	1
30	1
31	13
32	1
33	2
34	1
35	30
36	1
37	1
38	1
39	3
40	2
41	5
42	4
43	1
44	5
45	1
46	5
47	1
48	2
49	1
50	1
51	94
52	6
53	2
54	19
55	11
56	1
57	60
58	1
59	1
60	50
61	2
62	1
63	1
64	8
65	53
66	1
67	3
68	1
69	6
70	3
71	2
72	1
73	5
74	1
75	1
76	3
77	4
78	636
79	1
80	2
81	1
82	3
83	3
84	7
85	9
86	1
87	2
88	10
89	3
90	1
91	22
92	1
93	119
94	3

n	a(n)
0	1
1	1
2	4
3	20
4	2
5	3
6	1
7	6
8	10
9	5
10	2
11	2
12	1
13	2
14	2
15	1
16	18
17	1
18	1
19	3
20	2
21	1
22	2
23	1
24	2
25	1
26	39
27	2
28	1
29	1
30	1
31	13
32	1
33	2
34	1
35	30
36	1
37	1
38	1
39	3
40	2
41	5
42	4
43	1
44	5
45	1
46	5
47	1
48	2
49	1
50	1
51	94
52	6
53	2
54	19
55	11
56	1
57	60
58	1
59	1
60	50
61	2
62	1
63	1
64	8
65	53
66	1
67	3
68	1
69	6
70	3
71	2
72	1
73	5
74	1
75	1
76	3
77	4
78	636
79	1
80	2
81	1
82	3
83	3
84	7
85	9
86	1
87	2
88	10
89	3
90	1
91	22
92	1
93	119
94	3