A380414 - cp's OEIS frontend

A380414 a(n) = phi(2 + phi(3 + phi(4 + ... + phi(A246655(n))))), where phi is Euler's totient function (A000010).

n	a(n)
1	1
2	2
3	2
4	4
5	4
6	4
7	4
8	4
9	4
10	4
11	4
12	4
13	6
14	8
15	6
16	4
17	8
18	8
19	4
20	8
21	4
22	4
23	4
24	4
25	8
26	4
27	4
28	6
29	4
30	4
31	4
32	4
33	4
34	4
35	4
36	4
37	6
38	4
39	4
40	4
41	4
42	4
43	8
44	4
45	4
46	4
47	6
48	4
49	8
50	8
51	4
52	4
53	8
54	4
55	8
56	8
57	4
58	4
59	8
60	4
61	4
62	4
63	4
64	4
65	4
66	8
67	6
68	4
69	8
70	4
71	4
72	8
73	4
74	8
75	8
76	4
77	4
78	8
79	4
80	4
81	6
82	4
83	4
84	8
85	4
86	4
87	4
88	4
89	4
90	8

[1, 2, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 6, 8, 6, 4, 8, 8, 4, 8, 4, 4, 4, 4, 8, 4, 4, 6, 4, 4, 4, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 8, 4, 4, 4, 6, 4, 8, 8, 4, 4, 8, 4, 8, 8, 4, 4, 8, 4, 4, 4, 4, 4, 4, 8, 6, 4, 8, 4, 4, 8, 4, 8, 8, 4, 4, 8, 4, 4, 6, 4, 4, 8, 4, 4, 4, 4, 4, 8]

cp's OEIS Frontend

A380414 a(n) = phi(2 + phi(3 + phi(4 + ... + phi(A246655(n))))), where phi is Euler's totient function (A000010).

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	4
5	4
6	4
7	4
8	4
9	4
10	4
11	4
12	4
13	6
14	8
15	6
16	4
17	8
18	8
19	4
20	8
21	4
22	4
23	4
24	4
25	8
26	4
27	4
28	6
29	4
30	4
31	4
32	4
33	4
34	4
35	4
36	4
37	6
38	4
39	4
40	4
41	4
42	4
43	8
44	4
45	4
46	4
47	6
48	4
49	8
50	8
51	4
52	4
53	8
54	4
55	8
56	8
57	4
58	4
59	8
60	4
61	4
62	4
63	4
64	4
65	4
66	8
67	6
68	4
69	8
70	4
71	4
72	8
73	4
74	8
75	8
76	4
77	4
78	8
79	4
80	4
81	6
82	4
83	4
84	8
85	4
86	4
87	4
88	4
89	4
90	8

n	a(n)
1	1
2	2
3	2
4	4
5	4
6	4
7	4
8	4
9	4
10	4
11	4
12	4
13	6
14	8
15	6
16	4
17	8
18	8
19	4
20	8
21	4
22	4
23	4
24	4
25	8
26	4
27	4
28	6
29	4
30	4
31	4
32	4
33	4
34	4
35	4
36	4
37	6
38	4
39	4
40	4
41	4
42	4
43	8
44	4
45	4
46	4
47	6
48	4
49	8
50	8
51	4
52	4
53	8
54	4
55	8
56	8
57	4
58	4
59	8
60	4
61	4
62	4
63	4
64	4
65	4
66	8
67	6
68	4
69	8
70	4
71	4
72	8
73	4
74	8
75	8
76	4
77	4
78	8
79	4
80	4
81	6
82	4
83	4
84	8
85	4
86	4
87	4
88	4
89	4
90	8

n	a(n)
1	1
2	2
3	2
4	4
5	4
6	4
7	4
8	4
9	4
10	4
11	4
12	4
13	6
14	8
15	6
16	4
17	8
18	8
19	4
20	8
21	4
22	4
23	4
24	4
25	8
26	4
27	4
28	6
29	4
30	4
31	4
32	4
33	4
34	4
35	4
36	4
37	6
38	4
39	4
40	4
41	4
42	4
43	8
44	4
45	4
46	4
47	6
48	4
49	8
50	8
51	4
52	4
53	8
54	4
55	8
56	8
57	4
58	4
59	8
60	4
61	4
62	4
63	4
64	4
65	4
66	8
67	6
68	4
69	8
70	4
71	4
72	8
73	4
74	8
75	8
76	4
77	4
78	8
79	4
80	4
81	6
82	4
83	4
84	8
85	4
86	4
87	4
88	4
89	4
90	8