A331913 - cp's OEIS frontend

A331913 Lexicographically earliest sequence containing 1 and all positive integers that have exactly one distinct prime index already in the sequence.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	16
11	17
12	19
13	23
14	25
15	26
16	27
17	31
18	32
19	39
20	49
21	52
22	53
23	58
24	59
25	64
26	65
27	67
28	74
29	81
30	82
31	83
32	86
33	87
34	91
35	94
36	97
37	101
38	103
39	104
40	111
41	116
42	117
43	121
44	122
45	123
46	125
47	127
48	128
49	129
50	131
51	141
52	142
53	143
54	145
55	146
56	148
57	158
58	164
59	167
60	172
61	178

[1, 2, 3, 4, 5, 7, 8, 9, 11, 16, 17, 19, 23, 25, 26, 27, 31, 32, 39, 49, 52, 53, 58, 59, 64, 65, 67, 74, 81, 82, 83, 86, 87, 91, 94, 97, 101, 103, 104, 111, 116, 117, 121, 122, 123, 125, 127, 128, 129, 131, 141, 142, 143, 145, 146, 148, 158, 164, 167, 172, 178]

cp's OEIS Frontend

A331913 Lexicographically earliest sequence containing 1 and all positive integers that have exactly one distinct prime index already in the sequence.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	16
11	17
12	19
13	23
14	25
15	26
16	27
17	31
18	32
19	39
20	49
21	52
22	53
23	58
24	59
25	64
26	65
27	67
28	74
29	81
30	82
31	83
32	86
33	87
34	91
35	94
36	97
37	101
38	103
39	104
40	111
41	116
42	117
43	121
44	122
45	123
46	125
47	127
48	128
49	129
50	131
51	141
52	142
53	143
54	145
55	146
56	148
57	158
58	164
59	167
60	172
61	178

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	16
11	17
12	19
13	23
14	25
15	26
16	27
17	31
18	32
19	39
20	49
21	52
22	53
23	58
24	59
25	64
26	65
27	67
28	74
29	81
30	82
31	83
32	86
33	87
34	91
35	94
36	97
37	101
38	103
39	104
40	111
41	116
42	117
43	121
44	122
45	123
46	125
47	127
48	128
49	129
50	131
51	141
52	142
53	143
54	145
55	146
56	148
57	158
58	164
59	167
60	172
61	178

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	16
11	17
12	19
13	23
14	25
15	26
16	27
17	31
18	32
19	39
20	49
21	52
22	53
23	58
24	59
25	64
26	65
27	67
28	74
29	81
30	82
31	83
32	86
33	87
34	91
35	94
36	97
37	101
38	103
39	104
40	111
41	116
42	117
43	121
44	122
45	123
46	125
47	127
48	128
49	129
50	131
51	141
52	142
53	143
54	145
55	146
56	148
57	158
58	164
59	167
60	172
61	178