A213514 - cp's OEIS frontend

A213514 For composite n, remainder of n - 1 when divided by phi(n), where phi(n) is the totient function (A000010).

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

[1, 1, 3, 2, 1, 3, 1, 6, 7, 5, 3, 8, 1, 7, 4, 1, 8, 3, 5, 15, 12, 1, 10, 11, 1, 14, 7, 5, 3, 20, 1, 15, 6, 9, 18, 3, 17, 14, 7, 20, 1, 11, 1, 26, 31, 16, 5, 3, 24, 21, 23, 1, 34, 3, 16, 5, 15, 26, 1, 11, 20, 1, 30, 7, 17, 18, 3, 32, 1, 22, 31, 13, 38, 19, 5, 7, 8, 1, 35, 29, 38, 15, 5, 26, 3, 44, 1, 22, 23, 10]

cp's OEIS Frontend

A213514 For composite n, remainder of n - 1 when divided by phi(n), where phi(n) is the totient function (A000010).

Table of values

List of values

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

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

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