A328478 - cp's OEIS frontend

A328478 Divide n by the largest primorial that divides it and repeat until a fixed point is reached; a(n) is the fixed point.

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

[1, 1, 3, 1, 5, 1, 7, 1, 9, 5, 11, 1, 13, 7, 15, 1, 17, 3, 19, 5, 21, 11, 23, 1, 25, 13, 27, 7, 29, 1, 31, 1, 33, 17, 35, 1, 37, 19, 39, 5, 41, 7, 43, 11, 45, 23, 47, 1, 49, 25, 51, 13, 53, 9, 55, 7, 57, 29, 59, 1, 61, 31, 63, 1, 65, 11, 67, 17, 69, 35, 71, 1, 73, 37, 75, 19, 77, 13, 79, 5, 81, 41, 83, 7, 85, 43, 87, 11, 89]

cp's OEIS Frontend

A328478 Divide n by the largest primorial that divides it and repeat until a fixed point is reached; a(n) is the fixed point.

Table of values

List of values

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

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

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