A228489 - cp's OEIS frontend

A228489 Period of trace(n*tau), where tau = (1+sqrt(5))/2 = golden ratio.

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

[1, 1, 1, 1, 1, 4, 1, 1, 2, 4, 1, 1, 1, 6, 3, 1, 2, 1, 1, 10, 1, 8, 6, 1, 9, 4, 10, 8, 1, 18, 1, 6, 6, 1, 13, 1, 4, 1, 3, 10, 4, 4, 12, 6, 17, 1, 1, 1, 18, 21, 8, 10, 6, 8, 1, 8, 12, 4, 16, 16, 3, 6, 1, 14, 9, 14, 20, 1, 6, 36, 18, 1, 4, 13, 26, 1, 12, 20, 20]

cp's OEIS Frontend

A228489 Period of trace(n*tau), where tau = (1+sqrt(5))/2 = golden ratio.

Table of values

List of values

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

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

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