A245703 - cp's OEIS frontend

A245703 Permutation of natural numbers: a(1) = 1, a(p_n) = A014580(a(n)), a(c_n) = A091242(a(n)), where p_n = n-th prime, c_n = n-th composite number and A014580(n) and A091242(n) are binary codes for n-th irreducible and n-th reducible polynomials over GF(2), respectively.

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	5
7	11
8	6
9	8
10	12
11	25
12	9
13	13
14	17
15	10
16	14
17	47
18	18
19	19
20	34
21	15
22	20
23	31
24	24
25	16
26	21
27	62
28	26
29	55
30	27
31	137
32	45
33	22
34	28
35	42
36	33
37	37
38	23
39	29
40	79
41	59
42	35
43	87
44	71
45	36
46	166
47	41
48	58
49	30
50	38
51	54
52	44
53	61
54	49
55	32
56	39
57	99
58	76
59	319
60	46
61	91
62	108
63	89
64	48
65	200
66	53
67	97
68	75
69	40
70	50
71	203
72	70
73	67
74	57
75	78
76	64
77	43
78	51

[1, 2, 3, 4, 7, 5, 11, 6, 8, 12, 25, 9, 13, 17, 10, 14, 47, 18, 19, 34, 15, 20, 31, 24, 16, 21, 62, 26, 55, 27, 137, 45, 22, 28, 42, 33, 37, 23, 29, 79, 59, 35, 87, 71, 36, 166, 41, 58, 30, 38, 54, 44, 61, 49, 32, 39, 99, 76, 319, 46, 91, 108, 89, 48, 200, 53, 97, 75, 40, 50, 203, 70, 67, 57, 78, 64, 43, 51]

cp's OEIS Frontend

A245703 Permutation of natural numbers: a(1) = 1, a(p_n) = A014580(a(n)), a(c_n) = A091242(a(n)), where p_n = n-th prime, c_n = n-th composite number and A014580(n) and A091242(n) are binary codes for n-th irreducible and n-th reducible polynomials over GF(2), respectively.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	5
7	11
8	6
9	8
10	12
11	25
12	9
13	13
14	17
15	10
16	14
17	47
18	18
19	19
20	34
21	15
22	20
23	31
24	24
25	16
26	21
27	62
28	26
29	55
30	27
31	137
32	45
33	22
34	28
35	42
36	33
37	37
38	23
39	29
40	79
41	59
42	35
43	87
44	71
45	36
46	166
47	41
48	58
49	30
50	38
51	54
52	44
53	61
54	49
55	32
56	39
57	99
58	76
59	319
60	46
61	91
62	108
63	89
64	48
65	200
66	53
67	97
68	75
69	40
70	50
71	203
72	70
73	67
74	57
75	78
76	64
77	43
78	51

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	5
7	11
8	6
9	8
10	12
11	25
12	9
13	13
14	17
15	10
16	14
17	47
18	18
19	19
20	34
21	15
22	20
23	31
24	24
25	16
26	21
27	62
28	26
29	55
30	27
31	137
32	45
33	22
34	28
35	42
36	33
37	37
38	23
39	29
40	79
41	59
42	35
43	87
44	71
45	36
46	166
47	41
48	58
49	30
50	38
51	54
52	44
53	61
54	49
55	32
56	39
57	99
58	76
59	319
60	46
61	91
62	108
63	89
64	48
65	200
66	53
67	97
68	75
69	40
70	50
71	203
72	70
73	67
74	57
75	78
76	64
77	43
78	51

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	5
7	11
8	6
9	8
10	12
11	25
12	9
13	13
14	17
15	10
16	14
17	47
18	18
19	19
20	34
21	15
22	20
23	31
24	24
25	16
26	21
27	62
28	26
29	55
30	27
31	137
32	45
33	22
34	28
35	42
36	33
37	37
38	23
39	29
40	79
41	59
42	35
43	87
44	71
45	36
46	166
47	41
48	58
49	30
50	38
51	54
52	44
53	61
54	49
55	32
56	39
57	99
58	76
59	319
60	46
61	91
62	108
63	89
64	48
65	200
66	53
67	97
68	75
69	40
70	50
71	203
72	70
73	67
74	57
75	78
76	64
77	43
78	51