A132075 - cp's OEIS frontend

A132075 A conjectured permutation of the positive integers such that for every n, a(n) is the largest number among a(1), a(2), ..., a(n) that when added to a(n+1) gives a prime.

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	6
7	5
8	14
9	9
10	10
11	13
12	16
13	15
14	8
15	11
16	20
17	17
18	12
19	19
20	24
21	23
22	18
23	25
24	22
25	21
26	26
27	27
28	34
29	33
30	28
31	31
32	30
33	29
34	32
35	35
36	36
37	37
38	46
39	43
40	40
41	39
42	44
43	45
44	38
45	41
46	42
47	47
48	50
49	59
50	54
51	55
52	58
53	51
54	62
55	65
56	48
57	61
58	52
59	57
60	56
61	53
62	60
63	49
64	64
65	63
66	68
67	69
68	70
69	67
70	72
71	77
72	80
73	71
74	66
75	73
76	78
77	79
78	84
79	83
80	90
81	89
82	74
83	75
84	76
85	81
86	82
87	85
88	88
89	93
90	86
91	95
92	104
93	107
94	92

[1, 2, 3, 4, 7, 6, 5, 14, 9, 10, 13, 16, 15, 8, 11, 20, 17, 12, 19, 24, 23, 18, 25, 22, 21, 26, 27, 34, 33, 28, 31, 30, 29, 32, 35, 36, 37, 46, 43, 40, 39, 44, 45, 38, 41, 42, 47, 50, 59, 54, 55, 58, 51, 62, 65, 48, 61, 52, 57, 56, 53, 60, 49, 64, 63, 68, 69, 70, 67, 72, 77, 80, 71, 66, 73, 78, 79, 84, 83, 90, 89, 74, 75, 76, 81, 82, 85, 88, 93, 86, 95, 104, 107, 92]

cp's OEIS Frontend

A132075 A conjectured permutation of the positive integers such that for every n, a(n) is the largest number among a(1), a(2), ..., a(n) that when added to a(n+1) gives a prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	6
7	5
8	14
9	9
10	10
11	13
12	16
13	15
14	8
15	11
16	20
17	17
18	12
19	19
20	24
21	23
22	18
23	25
24	22
25	21
26	26
27	27
28	34
29	33
30	28
31	31
32	30
33	29
34	32
35	35
36	36
37	37
38	46
39	43
40	40
41	39
42	44
43	45
44	38
45	41
46	42
47	47
48	50
49	59
50	54
51	55
52	58
53	51
54	62
55	65
56	48
57	61
58	52
59	57
60	56
61	53
62	60
63	49
64	64
65	63
66	68
67	69
68	70
69	67
70	72
71	77
72	80
73	71
74	66
75	73
76	78
77	79
78	84
79	83
80	90
81	89
82	74
83	75
84	76
85	81
86	82
87	85
88	88
89	93
90	86
91	95
92	104
93	107
94	92

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	6
7	5
8	14
9	9
10	10
11	13
12	16
13	15
14	8
15	11
16	20
17	17
18	12
19	19
20	24
21	23
22	18
23	25
24	22
25	21
26	26
27	27
28	34
29	33
30	28
31	31
32	30
33	29
34	32
35	35
36	36
37	37
38	46
39	43
40	40
41	39
42	44
43	45
44	38
45	41
46	42
47	47
48	50
49	59
50	54
51	55
52	58
53	51
54	62
55	65
56	48
57	61
58	52
59	57
60	56
61	53
62	60
63	49
64	64
65	63
66	68
67	69
68	70
69	67
70	72
71	77
72	80
73	71
74	66
75	73
76	78
77	79
78	84
79	83
80	90
81	89
82	74
83	75
84	76
85	81
86	82
87	85
88	88
89	93
90	86
91	95
92	104
93	107
94	92

n	a(n)
1	1
2	2
3	3
4	4
5	7
6	6
7	5
8	14
9	9
10	10
11	13
12	16
13	15
14	8
15	11
16	20
17	17
18	12
19	19
20	24
21	23
22	18
23	25
24	22
25	21
26	26
27	27
28	34
29	33
30	28
31	31
32	30
33	29
34	32
35	35
36	36
37	37
38	46
39	43
40	40
41	39
42	44
43	45
44	38
45	41
46	42
47	47
48	50
49	59
50	54
51	55
52	58
53	51
54	62
55	65
56	48
57	61
58	52
59	57
60	56
61	53
62	60
63	49
64	64
65	63
66	68
67	69
68	70
69	67
70	72
71	77
72	80
73	71
74	66
75	73
76	78
77	79
78	84
79	83
80	90
81	89
82	74
83	75
84	76
85	81
86	82
87	85
88	88
89	93
90	86
91	95
92	104
93	107
94	92