A117818 - cp's OEIS frontend

A117818 a(n) = n if n is 1 or a prime, otherwise a(n) = n divided by the least prime factor of n (A032742(n)).

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

[1, 2, 3, 2, 5, 3, 7, 4, 3, 5, 11, 6, 13, 7, 5, 8, 17, 9, 19, 10, 7, 11, 23, 12, 5, 13, 9, 14, 29, 15, 31, 16, 11, 17, 7, 18, 37, 19, 13, 20, 41, 21, 43, 22, 15, 23, 47, 24, 7, 25, 17, 26, 53, 27, 11, 28, 19, 29, 59, 30, 61, 31, 21, 32, 13, 33, 67, 34, 23, 35, 71, 36, 73, 37, 25, 38]

cp's OEIS Frontend

A117818 a(n) = n if n is 1 or a prime, otherwise a(n) = n divided by the least prime factor of n (A032742(n)).

Table of values

List of values

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

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

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