A121274 - cp's OEIS frontend

A121274 a(n) = n-th integer from among those positive integers which are coprime to (n-th integer from among those positive integers which are coprime to n).

n	a(n)
1	1
2	2
3	5
4	4
5	13
6	6
7	13
8	14
9	9
10	10
11	31
12	17
13	29
14	14
15	33
16	16
17	49
18	18
19	47
20	23
21	21
22	22
23	67
24	24
25	25
26	36
27	67
28	37
29	107
30	30
31	61
32	55
33	33
34	34
35	55
36	36
37	77
38	38
39	79
40	65
41	143
42	53
43	93
44	58
45	45
46	61
47	139
48	57
49	77
50	76
51	127
52	80
53	157
54	65
55	113
56	85
57	57
58	72
59	221
60	60
61	125
62	62
63	63
64	64
65	100
66	79
67	141
68	81

[1, 2, 5, 4, 13, 6, 13, 14, 9, 10, 31, 17, 29, 14, 33, 16, 49, 18, 47, 23, 21, 22, 67, 24, 25, 36, 67, 37, 107, 30, 61, 55, 33, 34, 55, 36, 77, 38, 79, 65, 143, 53, 93, 58, 45, 61, 139, 57, 77, 76, 127, 80, 157, 65, 113, 85, 57, 72, 221, 60, 125, 62, 63, 64, 100, 79, 141, 81]

cp's OEIS Frontend

A121274 a(n) = n-th integer from among those positive integers which are coprime to (n-th integer from among those positive integers which are coprime to n).

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	4
5	13
6	6
7	13
8	14
9	9
10	10
11	31
12	17
13	29
14	14
15	33
16	16
17	49
18	18
19	47
20	23
21	21
22	22
23	67
24	24
25	25
26	36
27	67
28	37
29	107
30	30
31	61
32	55
33	33
34	34
35	55
36	36
37	77
38	38
39	79
40	65
41	143
42	53
43	93
44	58
45	45
46	61
47	139
48	57
49	77
50	76
51	127
52	80
53	157
54	65
55	113
56	85
57	57
58	72
59	221
60	60
61	125
62	62
63	63
64	64
65	100
66	79
67	141
68	81

n	a(n)
1	1
2	2
3	5
4	4
5	13
6	6
7	13
8	14
9	9
10	10
11	31
12	17
13	29
14	14
15	33
16	16
17	49
18	18
19	47
20	23
21	21
22	22
23	67
24	24
25	25
26	36
27	67
28	37
29	107
30	30
31	61
32	55
33	33
34	34
35	55
36	36
37	77
38	38
39	79
40	65
41	143
42	53
43	93
44	58
45	45
46	61
47	139
48	57
49	77
50	76
51	127
52	80
53	157
54	65
55	113
56	85
57	57
58	72
59	221
60	60
61	125
62	62
63	63
64	64
65	100
66	79
67	141
68	81

n	a(n)
1	1
2	2
3	5
4	4
5	13
6	6
7	13
8	14
9	9
10	10
11	31
12	17
13	29
14	14
15	33
16	16
17	49
18	18
19	47
20	23
21	21
22	22
23	67
24	24
25	25
26	36
27	67
28	37
29	107
30	30
31	61
32	55
33	33
34	34
35	55
36	36
37	77
38	38
39	79
40	65
41	143
42	53
43	93
44	58
45	45
46	61
47	139
48	57
49	77
50	76
51	127
52	80
53	157
54	65
55	113
56	85
57	57
58	72
59	221
60	60
61	125
62	62
63	63
64	64
65	100
66	79
67	141
68	81