A260425 - cp's OEIS frontend

A260425 a(1) = 1, a(A014580(n)) = A206074(a(n)), a(A091242(n)) = A205783(1+a(n)), where A014580(n) [resp. A091242(n)] give binary codes for n-th irreducible [resp. reducible] polynomial over GF(2), while A206074 and A205783 give similar codes for polynomials with coefficients 0 or 1 that are irreducible [resp. reducible] over Q.

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	8
7	5
8	9
9	12
10	15
11	7
12	10
13	13
14	16
15	21
16	26
17	14
18	18
19	19
20	22
21	27
22	34
23	40
24	24
25	11
26	30
27	32
28	35
29	42
30	51
31	23
32	60
33	38
34	20
35	46
36	49
37	31
38	52
39	63
40	76
41	43
42	36
43	92
44	57
45	33
46	68
47	17
48	74
49	48
50	78
51	95
52	114
53	64
54	54
55	25
56	135
57	86
58	50
59	37
60	102
61	47
62	28
63	111
64	72
65	118
66	140
67	67
68	165
69	96
70	82
71	39
72	195
73	79
74	128
75	75
76	56
77	150
78	70
79	44

[1, 2, 3, 4, 6, 8, 5, 9, 12, 15, 7, 10, 13, 16, 21, 26, 14, 18, 19, 22, 27, 34, 40, 24, 11, 30, 32, 35, 42, 51, 23, 60, 38, 20, 46, 49, 31, 52, 63, 76, 43, 36, 92, 57, 33, 68, 17, 74, 48, 78, 95, 114, 64, 54, 25, 135, 86, 50, 37, 102, 47, 28, 111, 72, 118, 140, 67, 165, 96, 82, 39, 195, 79, 128, 75, 56, 150, 70, 44]

cp's OEIS Frontend

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	8
7	5
8	9
9	12
10	15
11	7
12	10
13	13
14	16
15	21
16	26
17	14
18	18
19	19
20	22
21	27
22	34
23	40
24	24
25	11
26	30
27	32
28	35
29	42
30	51
31	23
32	60
33	38
34	20
35	46
36	49
37	31
38	52
39	63
40	76
41	43
42	36
43	92
44	57
45	33
46	68
47	17
48	74
49	48
50	78
51	95
52	114
53	64
54	54
55	25
56	135
57	86
58	50
59	37
60	102
61	47
62	28
63	111
64	72
65	118
66	140
67	67
68	165
69	96
70	82
71	39
72	195
73	79
74	128
75	75
76	56
77	150
78	70
79	44

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	8
7	5
8	9
9	12
10	15
11	7
12	10
13	13
14	16
15	21
16	26
17	14
18	18
19	19
20	22
21	27
22	34
23	40
24	24
25	11
26	30
27	32
28	35
29	42
30	51
31	23
32	60
33	38
34	20
35	46
36	49
37	31
38	52
39	63
40	76
41	43
42	36
43	92
44	57
45	33
46	68
47	17
48	74
49	48
50	78
51	95
52	114
53	64
54	54
55	25
56	135
57	86
58	50
59	37
60	102
61	47
62	28
63	111
64	72
65	118
66	140
67	67
68	165
69	96
70	82
71	39
72	195
73	79
74	128
75	75
76	56
77	150
78	70
79	44

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	8
7	5
8	9
9	12
10	15
11	7
12	10
13	13
14	16
15	21
16	26
17	14
18	18
19	19
20	22
21	27
22	34
23	40
24	24
25	11
26	30
27	32
28	35
29	42
30	51
31	23
32	60
33	38
34	20
35	46
36	49
37	31
38	52
39	63
40	76
41	43
42	36
43	92
44	57
45	33
46	68
47	17
48	74
49	48
50	78
51	95
52	114
53	64
54	54
55	25
56	135
57	86
58	50
59	37
60	102
61	47
62	28
63	111
64	72
65	118
66	140
67	67
68	165
69	96
70	82
71	39
72	195
73	79
74	128
75	75
76	56
77	150
78	70
79	44