A164822 - cp's OEIS frontend

A164822 Triangle read by rows, giving the number of solutions mod j of T_k(x) = 1, for j >= 2 and k = 1:j-1, where T_k is the k'th Chebyshev polynomial of the first kind.

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

[1, 1, 2, 1, 2, 1, 1, 2, 2, 2, 1, 4, 1, 5, 1, 1, 2, 2, 2, 1, 4, 1, 4, 1, 7, 1, 4, 1, 1, 2, 3, 4, 1, 6, 1, 4, 1, 4, 2, 5, 1, 8, 1, 5, 2, 1, 2, 2, 2, 3, 4, 1, 2, 2, 6, 1, 4, 1, 11, 1, 4, 1, 11, 1, 4, 1, 1, 2, 2, 2, 1, 4, 4, 2, 2, 2, 1, 6, 1, 4, 2, 5, 1, 8, 1, 9, 2, 4, 1, 9, 1, 1, 4, 2, 8, 1, 8, 1, 8, 2, 4, 1, 14, 1]

cp's OEIS Frontend

A164822 Triangle read by rows, giving the number of solutions mod j of T_k(x) = 1, for j >= 2 and k = 1:j-1, where T_k is the k'th Chebyshev polynomial of the first kind.

Table of values

List of values

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

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

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