A261872 - cp's OEIS frontend

A261872 a(n) = phi(n) mod 5, where phi is the Euler totient function.

n	a(n)
1	1
2	1
3	2
4	2
5	4
6	2
7	1
8	4
9	1
10	4
11	0
12	4
13	2
14	1
15	3
16	3
17	1
18	1
19	3
20	3
21	2
22	0
23	2
24	3
25	0
26	2
27	3
28	2
29	3
30	3
31	0
32	1
33	0
34	1
35	4
36	2
37	1
38	3
39	4
40	1
41	0
42	2
43	2
44	0
45	4
46	2
47	1
48	1
49	2
50	0
51	2
52	4
53	2
54	3
55	0
56	4
57	1
58	3
59	3
60	1
61	0
62	0
63	1
64	2
65	3
66	0
67	1
68	2
69	4
70	4
71	0
72	4
73	2
74	1
75	0
76	1
77	0
78	4
79	3
80	2
81	4
82	0
83	2
84	4
85	4
86	2
87	1
88	0
89	3
90	4
91	2
92	4
93	0
94	1
95	2
96	2
97	1
98	2
99	0
100	0
101	0
102	2
103	2
104	3
105	3

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

cp's OEIS Frontend

A261872 a(n) = phi(n) mod 5, where phi is the Euler totient function.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	2
5	4
6	2
7	1
8	4
9	1
10	4
11	0
12	4
13	2
14	1
15	3
16	3
17	1
18	1
19	3
20	3
21	2
22	0
23	2
24	3
25	0
26	2
27	3
28	2
29	3
30	3
31	0
32	1
33	0
34	1
35	4
36	2
37	1
38	3
39	4
40	1
41	0
42	2
43	2
44	0
45	4
46	2
47	1
48	1
49	2
50	0
51	2
52	4
53	2
54	3
55	0
56	4
57	1
58	3
59	3
60	1
61	0
62	0
63	1
64	2
65	3
66	0
67	1
68	2
69	4
70	4
71	0
72	4
73	2
74	1
75	0
76	1
77	0
78	4
79	3
80	2
81	4
82	0
83	2
84	4
85	4
86	2
87	1
88	0
89	3
90	4
91	2
92	4
93	0
94	1
95	2
96	2
97	1
98	2
99	0
100	0
101	0
102	2
103	2
104	3
105	3

n	a(n)
1	1
2	1
3	2
4	2
5	4
6	2
7	1
8	4
9	1
10	4
11	0
12	4
13	2
14	1
15	3
16	3
17	1
18	1
19	3
20	3
21	2
22	0
23	2
24	3
25	0
26	2
27	3
28	2
29	3
30	3
31	0
32	1
33	0
34	1
35	4
36	2
37	1
38	3
39	4
40	1
41	0
42	2
43	2
44	0
45	4
46	2
47	1
48	1
49	2
50	0
51	2
52	4
53	2
54	3
55	0
56	4
57	1
58	3
59	3
60	1
61	0
62	0
63	1
64	2
65	3
66	0
67	1
68	2
69	4
70	4
71	0
72	4
73	2
74	1
75	0
76	1
77	0
78	4
79	3
80	2
81	4
82	0
83	2
84	4
85	4
86	2
87	1
88	0
89	3
90	4
91	2
92	4
93	0
94	1
95	2
96	2
97	1
98	2
99	0
100	0
101	0
102	2
103	2
104	3
105	3

n	a(n)
1	1
2	1
3	2
4	2
5	4
6	2
7	1
8	4
9	1
10	4
11	0
12	4
13	2
14	1
15	3
16	3
17	1
18	1
19	3
20	3
21	2
22	0
23	2
24	3
25	0
26	2
27	3
28	2
29	3
30	3
31	0
32	1
33	0
34	1
35	4
36	2
37	1
38	3
39	4
40	1
41	0
42	2
43	2
44	0
45	4
46	2
47	1
48	1
49	2
50	0
51	2
52	4
53	2
54	3
55	0
56	4
57	1
58	3
59	3
60	1
61	0
62	0
63	1
64	2
65	3
66	0
67	1
68	2
69	4
70	4
71	0
72	4
73	2
74	1
75	0
76	1
77	0
78	4
79	3
80	2
81	4
82	0
83	2
84	4
85	4
86	2
87	1
88	0
89	3
90	4
91	2
92	4
93	0
94	1
95	2
96	2
97	1
98	2
99	0
100	0
101	0
102	2
103	2
104	3
105	3