A096865 - cp's OEIS frontend

A096865 Function A062401(x) = phi(sigma(x)) is iterated. Starting with n, a(n) is the smallest term arising in trajectory, either in transient or in terminal cycle.

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

[1, 2, 2, 4, 2, 4, 4, 8, 9, 4, 4, 12, 4, 8, 8, 16, 4, 16, 8, 12, 16, 12, 8, 16, 16, 12, 16, 16, 8, 16, 16, 32, 16, 16, 16, 36, 16, 16, 16, 16, 12, 32, 12, 16, 16, 16, 16, 48, 36, 48, 16, 32, 16, 32, 16, 32, 32, 16, 16, 48, 16, 32, 48, 64, 16, 48, 32, 36, 32, 48, 16, 72, 36, 36, 48]

cp's OEIS Frontend

A096865 Function A062401(x) = phi(sigma(x)) is iterated. Starting with n, a(n) is the smallest term arising in trajectory, either in transient or in terminal cycle.

Table of values

List of values

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

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

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