A331784 - cp's OEIS frontend

A331784 Lexicographically earliest sequence of positive integers that have at most one prime index already in the sequence, counting multiplicity.

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	13
8	14
9	17
10	19
11	21
12	23
13	26
14	29
15	31
16	35
17	37
18	38
19	39
20	41
21	43
22	46
23	47
24	49
25	53
26	57
27	58
28	59
29	61
30	65
31	67
32	69
33	71
34	73
35	74
36	77
37	79
38	83
39	87
40	89
41	91
42	94
43	95
44	97
45	98
46	101
47	103
48	106
49	107
50	109
51	111
52	113
53	115
54	119
55	122
56	127
57	131
58	133
59	137
60	139
61	141
62	142

[1, 2, 3, 5, 7, 11, 13, 14, 17, 19, 21, 23, 26, 29, 31, 35, 37, 38, 39, 41, 43, 46, 47, 49, 53, 57, 58, 59, 61, 65, 67, 69, 71, 73, 74, 77, 79, 83, 87, 89, 91, 94, 95, 97, 98, 101, 103, 106, 107, 109, 111, 113, 115, 119, 122, 127, 131, 133, 137, 139, 141, 142]

cp's OEIS Frontend

A331784 Lexicographically earliest sequence of positive integers that have at most one prime index already in the sequence, counting multiplicity.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	13
8	14
9	17
10	19
11	21
12	23
13	26
14	29
15	31
16	35
17	37
18	38
19	39
20	41
21	43
22	46
23	47
24	49
25	53
26	57
27	58
28	59
29	61
30	65
31	67
32	69
33	71
34	73
35	74
36	77
37	79
38	83
39	87
40	89
41	91
42	94
43	95
44	97
45	98
46	101
47	103
48	106
49	107
50	109
51	111
52	113
53	115
54	119
55	122
56	127
57	131
58	133
59	137
60	139
61	141
62	142

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	13
8	14
9	17
10	19
11	21
12	23
13	26
14	29
15	31
16	35
17	37
18	38
19	39
20	41
21	43
22	46
23	47
24	49
25	53
26	57
27	58
28	59
29	61
30	65
31	67
32	69
33	71
34	73
35	74
36	77
37	79
38	83
39	87
40	89
41	91
42	94
43	95
44	97
45	98
46	101
47	103
48	106
49	107
50	109
51	111
52	113
53	115
54	119
55	122
56	127
57	131
58	133
59	137
60	139
61	141
62	142

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	13
8	14
9	17
10	19
11	21
12	23
13	26
14	29
15	31
16	35
17	37
18	38
19	39
20	41
21	43
22	46
23	47
24	49
25	53
26	57
27	58
28	59
29	61
30	65
31	67
32	69
33	71
34	73
35	74
36	77
37	79
38	83
39	87
40	89
41	91
42	94
43	95
44	97
45	98
46	101
47	103
48	106
49	107
50	109
51	111
52	113
53	115
54	119
55	122
56	127
57	131
58	133
59	137
60	139
61	141
62	142