A063928 - cp's OEIS frontend

A063928 Largest nonprime proper divisor of n (with a(1)=1).

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	4
9	1
10	1
11	1
12	6
13	1
14	1
15	1
16	8
17	1
18	9
19	1
20	10
21	1
22	1
23	1
24	12
25	1
26	1
27	9
28	14
29	1
30	15
31	1
32	16
33	1
34	1
35	1
36	18
37	1
38	1
39	1
40	20
41	1
42	21
43	1
44	22
45	15
46	1
47	1
48	24
49	1
50	25
51	1
52	26
53	1
54	27
55	1
56	28
57	1
58	1
59	1
60	30
61	1
62	1
63	21
64	32
65	1
66	33
67	1
68	34
69	1
70	35
71	1
72	36
73	1
74	1
75	25
76	38
77	1
78	39
79	1
80	40
81	27
82	1
83	1
84	42
85	1
86	1
87	1
88	44
89	1

[1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 6, 1, 1, 1, 8, 1, 9, 1, 10, 1, 1, 1, 12, 1, 1, 9, 14, 1, 15, 1, 16, 1, 1, 1, 18, 1, 1, 1, 20, 1, 21, 1, 22, 15, 1, 1, 24, 1, 25, 1, 26, 1, 27, 1, 28, 1, 1, 1, 30, 1, 1, 21, 32, 1, 33, 1, 34, 1, 35, 1, 36, 1, 1, 25, 38, 1, 39, 1, 40, 27, 1, 1, 42, 1, 1, 1, 44, 1]

cp's OEIS Frontend

A063928 Largest nonprime proper divisor of n (with a(1)=1).

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	4
9	1
10	1
11	1
12	6
13	1
14	1
15	1
16	8
17	1
18	9
19	1
20	10
21	1
22	1
23	1
24	12
25	1
26	1
27	9
28	14
29	1
30	15
31	1
32	16
33	1
34	1
35	1
36	18
37	1
38	1
39	1
40	20
41	1
42	21
43	1
44	22
45	15
46	1
47	1
48	24
49	1
50	25
51	1
52	26
53	1
54	27
55	1
56	28
57	1
58	1
59	1
60	30
61	1
62	1
63	21
64	32
65	1
66	33
67	1
68	34
69	1
70	35
71	1
72	36
73	1
74	1
75	25
76	38
77	1
78	39
79	1
80	40
81	27
82	1
83	1
84	42
85	1
86	1
87	1
88	44
89	1

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	4
9	1
10	1
11	1
12	6
13	1
14	1
15	1
16	8
17	1
18	9
19	1
20	10
21	1
22	1
23	1
24	12
25	1
26	1
27	9
28	14
29	1
30	15
31	1
32	16
33	1
34	1
35	1
36	18
37	1
38	1
39	1
40	20
41	1
42	21
43	1
44	22
45	15
46	1
47	1
48	24
49	1
50	25
51	1
52	26
53	1
54	27
55	1
56	28
57	1
58	1
59	1
60	30
61	1
62	1
63	21
64	32
65	1
66	33
67	1
68	34
69	1
70	35
71	1
72	36
73	1
74	1
75	25
76	38
77	1
78	39
79	1
80	40
81	27
82	1
83	1
84	42
85	1
86	1
87	1
88	44
89	1

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	4
9	1
10	1
11	1
12	6
13	1
14	1
15	1
16	8
17	1
18	9
19	1
20	10
21	1
22	1
23	1
24	12
25	1
26	1
27	9
28	14
29	1
30	15
31	1
32	16
33	1
34	1
35	1
36	18
37	1
38	1
39	1
40	20
41	1
42	21
43	1
44	22
45	15
46	1
47	1
48	24
49	1
50	25
51	1
52	26
53	1
54	27
55	1
56	28
57	1
58	1
59	1
60	30
61	1
62	1
63	21
64	32
65	1
66	33
67	1
68	34
69	1
70	35
71	1
72	36
73	1
74	1
75	25
76	38
77	1
78	39
79	1
80	40
81	27
82	1
83	1
84	42
85	1
86	1
87	1
88	44
89	1