A083533 - cp's OEIS frontend

A083533 First difference sequence of A002202. Difference between consecutive possible values of phi(n), the Euler totient function A000010.

n	a(n)
1	1
2	2
3	2
4	2
5	2
6	2
7	4
8	2
9	2
10	2
11	2
12	4
13	2
14	2
15	4
16	4
17	2
18	2
19	2
20	2
21	4
22	2
23	2
24	2
25	2
26	4
27	2
28	4
29	2
30	6
31	2
32	2
33	2
34	4
35	4
36	4
37	4
38	2
39	2
40	2
41	2
42	2
43	2
44	4
45	4
46	6
47	2
48	2
49	2
50	4
51	2
52	2
53	4
54	4
55	2
56	6
57	4
58	2
59	2
60	2
61	2
62	4
63	4
64	2
65	2
66	4
67	6
68	2
69	4
70	2
71	2
72	4
73	4
74	2
75	2
76	4
77	4
78	2
79	2
80	2
81	2
82	4
83	6
84	2
85	10
86	2
87	4
88	4
89	2
90	2
91	4
92	2
93	2
94	4
95	4
96	2
97	6
98	4
99	2
100	2
101	4
102	6
103	4
104	2
105	4

[1, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 4, 2, 2, 4, 4, 2, 2, 2, 2, 4, 2, 2, 2, 2, 4, 2, 4, 2, 6, 2, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 4, 4, 6, 2, 2, 2, 4, 2, 2, 4, 4, 2, 6, 4, 2, 2, 2, 2, 4, 4, 2, 2, 4, 6, 2, 4, 2, 2, 4, 4, 2, 2, 4, 4, 2, 2, 2, 2, 4, 6, 2, 10, 2, 4, 4, 2, 2, 4, 2, 2, 4, 4, 2, 6, 4, 2, 2, 4, 6, 4, 2, 4]

cp's OEIS Frontend

A083533 First difference sequence of A002202. Difference between consecutive possible values of phi(n), the Euler totient function A000010.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	2
5	2
6	2
7	4
8	2
9	2
10	2
11	2
12	4
13	2
14	2
15	4
16	4
17	2
18	2
19	2
20	2
21	4
22	2
23	2
24	2
25	2
26	4
27	2
28	4
29	2
30	6
31	2
32	2
33	2
34	4
35	4
36	4
37	4
38	2
39	2
40	2
41	2
42	2
43	2
44	4
45	4
46	6
47	2
48	2
49	2
50	4
51	2
52	2
53	4
54	4
55	2
56	6
57	4
58	2
59	2
60	2
61	2
62	4
63	4
64	2
65	2
66	4
67	6
68	2
69	4
70	2
71	2
72	4
73	4
74	2
75	2
76	4
77	4
78	2
79	2
80	2
81	2
82	4
83	6
84	2
85	10
86	2
87	4
88	4
89	2
90	2
91	4
92	2
93	2
94	4
95	4
96	2
97	6
98	4
99	2
100	2
101	4
102	6
103	4
104	2
105	4

n	a(n)
1	1
2	2
3	2
4	2
5	2
6	2
7	4
8	2
9	2
10	2
11	2
12	4
13	2
14	2
15	4
16	4
17	2
18	2
19	2
20	2
21	4
22	2
23	2
24	2
25	2
26	4
27	2
28	4
29	2
30	6
31	2
32	2
33	2
34	4
35	4
36	4
37	4
38	2
39	2
40	2
41	2
42	2
43	2
44	4
45	4
46	6
47	2
48	2
49	2
50	4
51	2
52	2
53	4
54	4
55	2
56	6
57	4
58	2
59	2
60	2
61	2
62	4
63	4
64	2
65	2
66	4
67	6
68	2
69	4
70	2
71	2
72	4
73	4
74	2
75	2
76	4
77	4
78	2
79	2
80	2
81	2
82	4
83	6
84	2
85	10
86	2
87	4
88	4
89	2
90	2
91	4
92	2
93	2
94	4
95	4
96	2
97	6
98	4
99	2
100	2
101	4
102	6
103	4
104	2
105	4

n	a(n)
1	1
2	2
3	2
4	2
5	2
6	2
7	4
8	2
9	2
10	2
11	2
12	4
13	2
14	2
15	4
16	4
17	2
18	2
19	2
20	2
21	4
22	2
23	2
24	2
25	2
26	4
27	2
28	4
29	2
30	6
31	2
32	2
33	2
34	4
35	4
36	4
37	4
38	2
39	2
40	2
41	2
42	2
43	2
44	4
45	4
46	6
47	2
48	2
49	2
50	4
51	2
52	2
53	4
54	4
55	2
56	6
57	4
58	2
59	2
60	2
61	2
62	4
63	4
64	2
65	2
66	4
67	6
68	2
69	4
70	2
71	2
72	4
73	4
74	2
75	2
76	4
77	4
78	2
79	2
80	2
81	2
82	4
83	6
84	2
85	10
86	2
87	4
88	4
89	2
90	2
91	4
92	2
93	2
94	4
95	4
96	2
97	6
98	4
99	2
100	2
101	4
102	6
103	4
104	2
105	4