A091227 - cp's OEIS frontend

A091227 Inverse function of A014580: position in A014580 if the n-th GF(2)[X] polynomial is irreducible, 0 otherwise.

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

[0, 1, 2, 0, 0, 0, 3, 0, 0, 0, 4, 0, 5, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 9, 0, 0, 0, 10, 0, 0, 0, 0, 0, 11, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 13, 0, 14, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 0, 0, 0, 18, 0, 0, 0, 0, 0, 19, 0]

cp's OEIS Frontend

A091227 Inverse function of A014580: position in A014580 if the n-th GF(2)[X] polynomial is irreducible, 0 otherwise.

Table of values

List of values

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

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

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