A130700 - cp's OEIS frontend

A130700 a(0)=1; a(n) is the n-th integer from among those positive integers which are coprime to (a(n-1)*n).

n	a(n)
0	1
1	1
2	3
3	4
4	7
5	6
6	17
7	8
8	15
9	16
10	23
11	12
12	35
13	19
14	33
15	31
16	33
17	29
18	55
19	27
20	73
21	37
22	49
23	27
24	71
25	31
26	57
27	43
28	67
29	30
30	109
31	32
32	63
33	64
34	71
35	51
36	113
37	38
38	79
39	62
40	103
41	42
42	145
43	56
44	111
45	88
46	105
47	106
48	145
49	73
50	127

[1, 1, 3, 4, 7, 6, 17, 8, 15, 16, 23, 12, 35, 19, 33, 31, 33, 29, 55, 27, 73, 37, 49, 27, 71, 31, 57, 43, 67, 30, 109, 32, 63, 64, 71, 51, 113, 38, 79, 62, 103, 42, 145, 56, 111, 88, 105, 106, 145, 73, 127]

cp's OEIS Frontend

A130700 a(0)=1; a(n) is the n-th integer from among those positive integers which are coprime to (a(n-1)*n).

Table of values

List of values

n	a(n)
0	1
1	1
2	3
3	4
4	7
5	6
6	17
7	8
8	15
9	16
10	23
11	12
12	35
13	19
14	33
15	31
16	33
17	29
18	55
19	27
20	73
21	37
22	49
23	27
24	71
25	31
26	57
27	43
28	67
29	30
30	109
31	32
32	63
33	64
34	71
35	51
36	113
37	38
38	79
39	62
40	103
41	42
42	145
43	56
44	111
45	88
46	105
47	106
48	145
49	73
50	127

n	a(n)
0	1
1	1
2	3
3	4
4	7
5	6
6	17
7	8
8	15
9	16
10	23
11	12
12	35
13	19
14	33
15	31
16	33
17	29
18	55
19	27
20	73
21	37
22	49
23	27
24	71
25	31
26	57
27	43
28	67
29	30
30	109
31	32
32	63
33	64
34	71
35	51
36	113
37	38
38	79
39	62
40	103
41	42
42	145
43	56
44	111
45	88
46	105
47	106
48	145
49	73
50	127

n	a(n)
0	1
1	1
2	3
3	4
4	7
5	6
6	17
7	8
8	15
9	16
10	23
11	12
12	35
13	19
14	33
15	31
16	33
17	29
18	55
19	27
20	73
21	37
22	49
23	27
24	71
25	31
26	57
27	43
28	67
29	30
30	109
31	32
32	63
33	64
34	71
35	51
36	113
37	38
38	79
39	62
40	103
41	42
42	145
43	56
44	111
45	88
46	105
47	106
48	145
49	73
50	127