A091226 - cp's OEIS frontend

A091226 Number of irreducible GF(2)[X]-polynomials in range [0,n].

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

[0, 0, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16]

cp's OEIS Frontend

A091226 Number of irreducible GF(2)[X]-polynomials in range [0,n].

Table of values

List of values

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

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

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