A285320 - cp's OEIS frontend

A285320 If n == 0 or A008683(n) == 0, then a(n) = 0, otherwise a(n) = 1+a(A048675(n)); number of iterations of A048675 needed before the result is either zero or nonsquarefree number (A013929).

n	a(n)
0	0
1	1
2	2
3	3
4	0
5	1
6	4
7	1
8	0
9	0
10	2
11	1
12	0
13	1
14	1
15	5
16	0
17	1
18	0
19	1
20	0
21	3
22	2
23	1
24	0
25	0
26	2
27	0
28	0
29	1
30	2
31	1
32	0
33	1
34	2
35	1
36	0
37	1
38	3
39	3
40	0
41	1
42	2
43	1
44	0
45	0
46	2
47	1
48	0
49	0
50	0
51	3
52	0
53	1
54	0
55	1
56	0
57	3
58	1
59	1
60	0
61	1
62	1
63	0
64	0
65	1
66	2
67	1
68	0
69	3
70	2
71	1
72	0
73	1

[0, 1, 2, 3, 0, 1, 4, 1, 0, 0, 2, 1, 0, 1, 1, 5, 0, 1, 0, 1, 0, 3, 2, 1, 0, 0, 2, 0, 0, 1, 2, 1, 0, 1, 2, 1, 0, 1, 3, 3, 0, 1, 2, 1, 0, 0, 2, 1, 0, 0, 0, 3, 0, 1, 0, 1, 0, 3, 1, 1, 0, 1, 1, 0, 0, 1, 2, 1, 0, 3, 2, 1, 0, 1]

cp's OEIS Frontend

A285320 If n == 0 or A008683(n) == 0, then a(n) = 0, otherwise a(n) = 1+a(A048675(n)); number of iterations of A048675 needed before the result is either zero or nonsquarefree number (A013929).

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	0
5	1
6	4
7	1
8	0
9	0
10	2
11	1
12	0
13	1
14	1
15	5
16	0
17	1
18	0
19	1
20	0
21	3
22	2
23	1
24	0
25	0
26	2
27	0
28	0
29	1
30	2
31	1
32	0
33	1
34	2
35	1
36	0
37	1
38	3
39	3
40	0
41	1
42	2
43	1
44	0
45	0
46	2
47	1
48	0
49	0
50	0
51	3
52	0
53	1
54	0
55	1
56	0
57	3
58	1
59	1
60	0
61	1
62	1
63	0
64	0
65	1
66	2
67	1
68	0
69	3
70	2
71	1
72	0
73	1

n	a(n)
0	0
1	1
2	2
3	3
4	0
5	1
6	4
7	1
8	0
9	0
10	2
11	1
12	0
13	1
14	1
15	5
16	0
17	1
18	0
19	1
20	0
21	3
22	2
23	1
24	0
25	0
26	2
27	0
28	0
29	1
30	2
31	1
32	0
33	1
34	2
35	1
36	0
37	1
38	3
39	3
40	0
41	1
42	2
43	1
44	0
45	0
46	2
47	1
48	0
49	0
50	0
51	3
52	0
53	1
54	0
55	1
56	0
57	3
58	1
59	1
60	0
61	1
62	1
63	0
64	0
65	1
66	2
67	1
68	0
69	3
70	2
71	1
72	0
73	1

n	a(n)
0	0
1	1
2	2
3	3
4	0
5	1
6	4
7	1
8	0
9	0
10	2
11	1
12	0
13	1
14	1
15	5
16	0
17	1
18	0
19	1
20	0
21	3
22	2
23	1
24	0
25	0
26	2
27	0
28	0
29	1
30	2
31	1
32	0
33	1
34	2
35	1
36	0
37	1
38	3
39	3
40	0
41	1
42	2
43	1
44	0
45	0
46	2
47	1
48	0
49	0
50	0
51	3
52	0
53	1
54	0
55	1
56	0
57	3
58	1
59	1
60	0
61	1
62	1
63	0
64	0
65	1
66	2
67	1
68	0
69	3
70	2
71	1
72	0
73	1