A347045 - cp's OEIS frontend

A347045 Smallest divisor of n with exactly half as many prime factors (counting multiplicity) as n, or 1 if there are none.

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	1
9	3
10	2
11	1
12	1
13	1
14	2
15	3
16	4
17	1
18	1
19	1
20	1
21	3
22	2
23	1
24	4
25	5
26	2
27	1
28	1
29	1
30	1
31	1
32	1
33	3
34	2
35	5
36	4
37	1
38	2
39	3
40	4
41	1
42	1
43	1
44	1
45	1
46	2
47	1
48	1
49	7
50	1
51	3
52	1
53	1
54	6
55	5
56	4
57	3
58	2
59	1
60	4
61	1
62	2
63	1
64	8
65	5
66	1
67	1
68	1
69	3
70	1
71	1
72	1
73	1
74	2
75	1
76	1
77	7
78	1
79	1
80	1
81	9
82	2
83	1
84	4
85	5
86	2
87	3

[1, 1, 1, 2, 1, 2, 1, 1, 3, 2, 1, 1, 1, 2, 3, 4, 1, 1, 1, 1, 3, 2, 1, 4, 5, 2, 1, 1, 1, 1, 1, 1, 3, 2, 5, 4, 1, 2, 3, 4, 1, 1, 1, 1, 1, 2, 1, 1, 7, 1, 3, 1, 1, 6, 5, 4, 3, 2, 1, 4, 1, 2, 1, 8, 5, 1, 1, 1, 3, 1, 1, 1, 1, 2, 1, 1, 7, 1, 1, 1, 9, 2, 1, 4, 5, 2, 3]

cp's OEIS Frontend

A347045 Smallest divisor of n with exactly half as many prime factors (counting multiplicity) as n, or 1 if there are none.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	1
9	3
10	2
11	1
12	1
13	1
14	2
15	3
16	4
17	1
18	1
19	1
20	1
21	3
22	2
23	1
24	4
25	5
26	2
27	1
28	1
29	1
30	1
31	1
32	1
33	3
34	2
35	5
36	4
37	1
38	2
39	3
40	4
41	1
42	1
43	1
44	1
45	1
46	2
47	1
48	1
49	7
50	1
51	3
52	1
53	1
54	6
55	5
56	4
57	3
58	2
59	1
60	4
61	1
62	2
63	1
64	8
65	5
66	1
67	1
68	1
69	3
70	1
71	1
72	1
73	1
74	2
75	1
76	1
77	7
78	1
79	1
80	1
81	9
82	2
83	1
84	4
85	5
86	2
87	3

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	1
9	3
10	2
11	1
12	1
13	1
14	2
15	3
16	4
17	1
18	1
19	1
20	1
21	3
22	2
23	1
24	4
25	5
26	2
27	1
28	1
29	1
30	1
31	1
32	1
33	3
34	2
35	5
36	4
37	1
38	2
39	3
40	4
41	1
42	1
43	1
44	1
45	1
46	2
47	1
48	1
49	7
50	1
51	3
52	1
53	1
54	6
55	5
56	4
57	3
58	2
59	1
60	4
61	1
62	2
63	1
64	8
65	5
66	1
67	1
68	1
69	3
70	1
71	1
72	1
73	1
74	2
75	1
76	1
77	7
78	1
79	1
80	1
81	9
82	2
83	1
84	4
85	5
86	2
87	3

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	1
9	3
10	2
11	1
12	1
13	1
14	2
15	3
16	4
17	1
18	1
19	1
20	1
21	3
22	2
23	1
24	4
25	5
26	2
27	1
28	1
29	1
30	1
31	1
32	1
33	3
34	2
35	5
36	4
37	1
38	2
39	3
40	4
41	1
42	1
43	1
44	1
45	1
46	2
47	1
48	1
49	7
50	1
51	3
52	1
53	1
54	6
55	5
56	4
57	3
58	2
59	1
60	4
61	1
62	2
63	1
64	8
65	5
66	1
67	1
68	1
69	3
70	1
71	1
72	1
73	1
74	2
75	1
76	1
77	7
78	1
79	1
80	1
81	9
82	2
83	1
84	4
85	5
86	2
87	3