A088739 - cp's OEIS frontend

A088739 Smallest semiprime divisor of n-th composite number.

n	a(n)
1	4
2	6
3	4
4	9
5	10
6	4
7	14
8	15
9	4
10	6
11	4
12	21
13	22
14	4
15	25
16	26
17	9
18	4
19	6
20	4
21	33
22	34
23	35
24	4
25	38
26	39
27	4
28	6
29	4
30	9
31	46
32	4
33	49
34	10
35	51
36	4
37	6
38	55
39	4
40	57
41	58
42	4
43	62
44	9
45	4
46	65
47	6
48	4
49	69
50	10
51	4
52	74
53	15
54	4
55	77
56	6
57	4
58	9
59	82
60	4
61	85
62	86
63	87
64	4
65	6
66	91
67	4
68	93
69	94
70	95
71	4
72	14
73	9
74	4
75	6
76	4
77	15
78	106
79	4
80	10
81	111
82	4

[4, 6, 4, 9, 10, 4, 14, 15, 4, 6, 4, 21, 22, 4, 25, 26, 9, 4, 6, 4, 33, 34, 35, 4, 38, 39, 4, 6, 4, 9, 46, 4, 49, 10, 51, 4, 6, 55, 4, 57, 58, 4, 62, 9, 4, 65, 6, 4, 69, 10, 4, 74, 15, 4, 77, 6, 4, 9, 82, 4, 85, 86, 87, 4, 6, 91, 4, 93, 94, 95, 4, 14, 9, 4, 6, 4, 15, 106, 4, 10, 111, 4]

cp's OEIS Frontend

A088739 Smallest semiprime divisor of n-th composite number.

Table of values

List of values

n	a(n)
1	4
2	6
3	4
4	9
5	10
6	4
7	14
8	15
9	4
10	6
11	4
12	21
13	22
14	4
15	25
16	26
17	9
18	4
19	6
20	4
21	33
22	34
23	35
24	4
25	38
26	39
27	4
28	6
29	4
30	9
31	46
32	4
33	49
34	10
35	51
36	4
37	6
38	55
39	4
40	57
41	58
42	4
43	62
44	9
45	4
46	65
47	6
48	4
49	69
50	10
51	4
52	74
53	15
54	4
55	77
56	6
57	4
58	9
59	82
60	4
61	85
62	86
63	87
64	4
65	6
66	91
67	4
68	93
69	94
70	95
71	4
72	14
73	9
74	4
75	6
76	4
77	15
78	106
79	4
80	10
81	111
82	4

n	a(n)
1	4
2	6
3	4
4	9
5	10
6	4
7	14
8	15
9	4
10	6
11	4
12	21
13	22
14	4
15	25
16	26
17	9
18	4
19	6
20	4
21	33
22	34
23	35
24	4
25	38
26	39
27	4
28	6
29	4
30	9
31	46
32	4
33	49
34	10
35	51
36	4
37	6
38	55
39	4
40	57
41	58
42	4
43	62
44	9
45	4
46	65
47	6
48	4
49	69
50	10
51	4
52	74
53	15
54	4
55	77
56	6
57	4
58	9
59	82
60	4
61	85
62	86
63	87
64	4
65	6
66	91
67	4
68	93
69	94
70	95
71	4
72	14
73	9
74	4
75	6
76	4
77	15
78	106
79	4
80	10
81	111
82	4

n	a(n)
1	4
2	6
3	4
4	9
5	10
6	4
7	14
8	15
9	4
10	6
11	4
12	21
13	22
14	4
15	25
16	26
17	9
18	4
19	6
20	4
21	33
22	34
23	35
24	4
25	38
26	39
27	4
28	6
29	4
30	9
31	46
32	4
33	49
34	10
35	51
36	4
37	6
38	55
39	4
40	57
41	58
42	4
43	62
44	9
45	4
46	65
47	6
48	4
49	69
50	10
51	4
52	74
53	15
54	4
55	77
56	6
57	4
58	9
59	82
60	4
61	85
62	86
63	87
64	4
65	6
66	91
67	4
68	93
69	94
70	95
71	4
72	14
73	9
74	4
75	6
76	4
77	15
78	106
79	4
80	10
81	111
82	4