A318622 - cp's OEIS frontend

A318622 Number of irreducible factors in the factorization of the n-th cyclotomic polynomial over GF(2) (counted with multiplicity).

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

[1, 1, 1, 2, 1, 1, 2, 4, 1, 1, 1, 2, 1, 2, 2, 8, 2, 1, 1, 2, 2, 1, 2, 4, 1, 1, 1, 4, 1, 2, 6, 16, 2, 2, 2, 2, 1, 1, 2, 4, 2, 2, 3, 2, 2, 2, 2, 8, 2, 1, 4, 2, 1, 1, 2, 8, 2, 1, 1, 4, 1, 6, 6, 32, 4, 2, 1, 4, 2, 2, 2, 4, 8, 1, 2, 2, 2, 2, 2, 8, 1, 2, 1, 4, 8, 3, 2, 4, 8, 2, 6, 4, 6, 2, 2, 16, 2, 2]

cp's OEIS Frontend

A318622 Number of irreducible factors in the factorization of the n-th cyclotomic polynomial over GF(2) (counted with multiplicity).

Table of values

List of values

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

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

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