A255004 - cp's OEIS frontend

A255004 Lexicographically earliest permutation of positive integers such that a(a(n)+a(n+1)) is prime for all n.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	11
10	9
11	13
12	10
13	17
14	12
15	19
16	14
17	15
18	16
19	23
20	29
21	18
22	31
23	37
24	20
25	21
26	22
27	41
28	24
29	43
30	25
31	47
32	26
33	53
34	27
35	28
36	30
37	32
38	33
39	59
40	34
41	61
42	35
43	67
44	36
45	38
46	39
47	71
48	40
49	73
50	42
51	44
52	79
53	45
54	46
55	83
56	48
57	89
58	97
59	49
60	50
61	51
62	101
63	103
64	52
65	107
66	54

[1, 2, 3, 4, 5, 6, 7, 8, 11, 9, 13, 10, 17, 12, 19, 14, 15, 16, 23, 29, 18, 31, 37, 20, 21, 22, 41, 24, 43, 25, 47, 26, 53, 27, 28, 30, 32, 33, 59, 34, 61, 35, 67, 36, 38, 39, 71, 40, 73, 42, 44, 79, 45, 46, 83, 48, 89, 97, 49, 50, 51, 101, 103, 52, 107, 54]

cp's OEIS Frontend

A255004 Lexicographically earliest permutation of positive integers such that a(a(n)+a(n+1)) is prime for all n.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	11
10	9
11	13
12	10
13	17
14	12
15	19
16	14
17	15
18	16
19	23
20	29
21	18
22	31
23	37
24	20
25	21
26	22
27	41
28	24
29	43
30	25
31	47
32	26
33	53
34	27
35	28
36	30
37	32
38	33
39	59
40	34
41	61
42	35
43	67
44	36
45	38
46	39
47	71
48	40
49	73
50	42
51	44
52	79
53	45
54	46
55	83
56	48
57	89
58	97
59	49
60	50
61	51
62	101
63	103
64	52
65	107
66	54

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	11
10	9
11	13
12	10
13	17
14	12
15	19
16	14
17	15
18	16
19	23
20	29
21	18
22	31
23	37
24	20
25	21
26	22
27	41
28	24
29	43
30	25
31	47
32	26
33	53
34	27
35	28
36	30
37	32
38	33
39	59
40	34
41	61
42	35
43	67
44	36
45	38
46	39
47	71
48	40
49	73
50	42
51	44
52	79
53	45
54	46
55	83
56	48
57	89
58	97
59	49
60	50
61	51
62	101
63	103
64	52
65	107
66	54

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	11
10	9
11	13
12	10
13	17
14	12
15	19
16	14
17	15
18	16
19	23
20	29
21	18
22	31
23	37
24	20
25	21
26	22
27	41
28	24
29	43
30	25
31	47
32	26
33	53
34	27
35	28
36	30
37	32
38	33
39	59
40	34
41	61
42	35
43	67
44	36
45	38
46	39
47	71
48	40
49	73
50	42
51	44
52	79
53	45
54	46
55	83
56	48
57	89
58	97
59	49
60	50
61	51
62	101
63	103
64	52
65	107
66	54