A258569 - cp's OEIS frontend

A258569 Smallest prime factors of 4-full numbers, a(1)=1.

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

[1, 2, 2, 2, 3, 2, 3, 2, 2, 5, 3, 2, 2, 2, 3, 7, 2, 5, 2, 2, 2, 3, 2, 2, 2, 2, 2, 11, 2, 5, 2, 7, 3, 2, 2, 2, 13, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 2, 2, 2, 2, 5, 2, 2, 17, 2, 2, 2, 7, 2, 19, 2, 2, 3, 2, 2, 11, 2, 3, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 23, 2, 2, 2, 2]

cp's OEIS Frontend

A258569 Smallest prime factors of 4-full numbers, a(1)=1.

Table of values

List of values

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

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

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