A026417 - cp's OEIS frontend

A026417 a(n) = least positive integer > a(n-1) and not a(i)*a(j) for 1<=i with initial terms 1,3.

n	a(n)
1	1
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	16
14	17
15	19
16	22
17	23
18	25
19	26
20	29
21	31
22	34
23	37
24	38
25	41
26	43
27	46
28	47
29	49
30	53
31	58
32	59
33	61
34	62
35	67
36	71
37	73
38	74
39	79
40	81
41	82
42	83
43	86
44	89
45	94
46	97
47	101
48	103
49	105
50	106
51	107
52	108
53	109
54	113
55	118
56	120
57	121
58	122
59	127

[1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 16, 17, 19, 22, 23, 25, 26, 29, 31, 34, 37, 38, 41, 43, 46, 47, 49, 53, 58, 59, 61, 62, 67, 71, 73, 74, 79, 81, 82, 83, 86, 89, 94, 97, 101, 103, 105, 106, 107, 108, 109, 113, 118, 120, 121, 122, 127]

cp's OEIS Frontend

A026417 a(n) = least positive integer > a(n-1) and not a(i)*a(j) for 1<=i with initial terms 1,3.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	16
14	17
15	19
16	22
17	23
18	25
19	26
20	29
21	31
22	34
23	37
24	38
25	41
26	43
27	46
28	47
29	49
30	53
31	58
32	59
33	61
34	62
35	67
36	71
37	73
38	74
39	79
40	81
41	82
42	83
43	86
44	89
45	94
46	97
47	101
48	103
49	105
50	106
51	107
52	108
53	109
54	113
55	118
56	120
57	121
58	122
59	127

n	a(n)
1	1
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	16
14	17
15	19
16	22
17	23
18	25
19	26
20	29
21	31
22	34
23	37
24	38
25	41
26	43
27	46
28	47
29	49
30	53
31	58
32	59
33	61
34	62
35	67
36	71
37	73
38	74
39	79
40	81
41	82
42	83
43	86
44	89
45	94
46	97
47	101
48	103
49	105
50	106
51	107
52	108
53	109
54	113
55	118
56	120
57	121
58	122
59	127

n	a(n)
1	1
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	16
14	17
15	19
16	22
17	23
18	25
19	26
20	29
21	31
22	34
23	37
24	38
25	41
26	43
27	46
28	47
29	49
30	53
31	58
32	59
33	61
34	62
35	67
36	71
37	73
38	74
39	79
40	81
41	82
42	83
43	86
44	89
45	94
46	97
47	101
48	103
49	105
50	106
51	107
52	108
53	109
54	113
55	118
56	120
57	121
58	122
59	127