A348994 - cp's OEIS frontend

A348994 a(n) = A003961(n) / gcd(n, A003961(n)), where A003961(n) is fully multiplicative with a(prime(k)) = prime(k+1).

n	a(n)
1	1
2	3
3	5
4	9
5	7
6	5
7	11
8	27
9	25
10	21
11	13
12	15
13	17
14	33
15	7
16	81
17	19
18	25
19	23
20	63
21	55
22	39
23	29
24	45
25	49
26	51
27	125
28	99
29	31
30	7
31	37
32	243
33	65
34	57
35	11
36	25
37	41
38	69
39	85
40	189
41	43
42	55
43	47
44	117
45	35
46	87
47	53
48	135
49	121
50	147
51	95
52	153
53	59
54	125
55	91
56	297
57	115
58	93
59	61
60	21
61	67
62	111
63	275
64	729
65	119
66	65
67	71
68	171
69	145
70	33
71	73
72	75
73	79
74	123
75	49
76	207

[1, 3, 5, 9, 7, 5, 11, 27, 25, 21, 13, 15, 17, 33, 7, 81, 19, 25, 23, 63, 55, 39, 29, 45, 49, 51, 125, 99, 31, 7, 37, 243, 65, 57, 11, 25, 41, 69, 85, 189, 43, 55, 47, 117, 35, 87, 53, 135, 121, 147, 95, 153, 59, 125, 91, 297, 115, 93, 61, 21, 67, 111, 275, 729, 119, 65, 71, 171, 145, 33, 73, 75, 79, 123, 49, 207]

cp's OEIS Frontend

A348994 a(n) = A003961(n) / gcd(n, A003961(n)), where A003961(n) is fully multiplicative with a(prime(k)) = prime(k+1).

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	9
5	7
6	5
7	11
8	27
9	25
10	21
11	13
12	15
13	17
14	33
15	7
16	81
17	19
18	25
19	23
20	63
21	55
22	39
23	29
24	45
25	49
26	51
27	125
28	99
29	31
30	7
31	37
32	243
33	65
34	57
35	11
36	25
37	41
38	69
39	85
40	189
41	43
42	55
43	47
44	117
45	35
46	87
47	53
48	135
49	121
50	147
51	95
52	153
53	59
54	125
55	91
56	297
57	115
58	93
59	61
60	21
61	67
62	111
63	275
64	729
65	119
66	65
67	71
68	171
69	145
70	33
71	73
72	75
73	79
74	123
75	49
76	207

n	a(n)
1	1
2	3
3	5
4	9
5	7
6	5
7	11
8	27
9	25
10	21
11	13
12	15
13	17
14	33
15	7
16	81
17	19
18	25
19	23
20	63
21	55
22	39
23	29
24	45
25	49
26	51
27	125
28	99
29	31
30	7
31	37
32	243
33	65
34	57
35	11
36	25
37	41
38	69
39	85
40	189
41	43
42	55
43	47
44	117
45	35
46	87
47	53
48	135
49	121
50	147
51	95
52	153
53	59
54	125
55	91
56	297
57	115
58	93
59	61
60	21
61	67
62	111
63	275
64	729
65	119
66	65
67	71
68	171
69	145
70	33
71	73
72	75
73	79
74	123
75	49
76	207

n	a(n)
1	1
2	3
3	5
4	9
5	7
6	5
7	11
8	27
9	25
10	21
11	13
12	15
13	17
14	33
15	7
16	81
17	19
18	25
19	23
20	63
21	55
22	39
23	29
24	45
25	49
26	51
27	125
28	99
29	31
30	7
31	37
32	243
33	65
34	57
35	11
36	25
37	41
38	69
39	85
40	189
41	43
42	55
43	47
44	117
45	35
46	87
47	53
48	135
49	121
50	147
51	95
52	153
53	59
54	125
55	91
56	297
57	115
58	93
59	61
60	21
61	67
62	111
63	275
64	729
65	119
66	65
67	71
68	171
69	145
70	33
71	73
72	75
73	79
74	123
75	49
76	207