A125595 - cp's OEIS frontend

A125595 a(1)=1, a(n) = the least positive number not yet in sequence which added to max(a(1)..a(n-1)) gives a prime.

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

[1, 2, 3, 4, 7, 6, 10, 9, 13, 16, 15, 21, 8, 20, 22, 19, 25, 12, 18, 28, 31, 30, 36, 5, 11, 17, 23, 35, 37, 24, 34, 42, 29, 41, 47, 14, 26, 32, 50, 33, 39, 51, 38, 46, 52, 27, 45, 49, 55, 48, 54, 58, 43, 69, 40, 44, 62, 68, 70, 57, 61, 67, 79, 60, 72, 78, 84, 53, 65, 73, 83, 89]

cp's OEIS Frontend

A125595 a(1)=1, a(n) = the least positive number not yet in sequence which added to max(a(1)..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	10
8	9
9	13
10	16
11	15
12	21
13	8
14	20
15	22
16	19
17	25
18	12
19	18
20	28
21	31
22	30
23	36
24	5
25	11
26	17
27	23
28	35
29	37
30	24
31	34
32	42
33	29
34	41
35	47
36	14
37	26
38	32
39	50
40	33
41	39
42	51
43	38
44	46
45	52
46	27
47	45
48	49
49	55
50	48
51	54
52	58
53	43
54	69
55	40
56	44
57	62
58	68
59	70
60	57
61	61
62	67
63	79
64	60
65	72
66	78
67	84
68	53
69	65
70	73
71	83
72	89

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

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