A146326 - cp's OEIS frontend

A146326 Length of the period of the continued fraction of (1+sqrt(n))/2.

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

[0, 2, 2, 0, 1, 4, 4, 4, 0, 2, 2, 2, 1, 4, 2, 0, 3, 6, 6, 4, 2, 6, 4, 4, 0, 2, 2, 4, 1, 2, 8, 4, 4, 4, 2, 0, 3, 6, 6, 8, 5, 4, 10, 6, 2, 8, 4, 4, 0, 2, 2, 4, 1, 6, 4, 2, 6, 6, 6, 4, 3, 4, 2, 0, 3, 6, 10, 6, 4, 6, 8, 4, 9, 6, 4, 8, 2, 4, 4, 4, 0, 2, 2, 2, 1, 6, 2, 8, 7, 2, 8, 8, 2, 12, 4, 8, 9, 4, 2, 0]

cp's OEIS Frontend

A146326 Length of the period of the continued fraction of (1+sqrt(n))/2.

Table of values

List of values

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

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

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