A348987 - cp's OEIS frontend

A348987 a(n) = gcd(sigma(n), A332994(n)).

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	3
7	8
8	15
9	13
10	1
11	12
12	1
13	14
14	1
15	1
16	31
17	18
18	3
19	20
20	3
21	1
22	1
23	24
24	3
25	31
26	1
27	40
28	7
29	30
30	3
31	32
32	63
33	1
34	1
35	1
36	1
37	38
38	1
39	1
40	5
41	42
42	3
43	44
44	3
45	2
46	1
47	48
48	1
49	57
50	3
51	1
52	1
53	54
54	3
55	1
56	1
57	1
58	1
59	60
60	1
61	62
62	1
63	4
64	127
65	1
66	3
67	68
68	3
69	1
70	1
71	72
72	3
73	74
74	1
75	2
76	1
77	1
78	3
79	80
80	3
81	121
82	1
83	84
84	1
85	1
86	1
87	1
88	1
89	90
90	117
91	1
92	3
93	1
94	1
95	1
96	3

[1, 3, 4, 7, 6, 3, 8, 15, 13, 1, 12, 1, 14, 1, 1, 31, 18, 3, 20, 3, 1, 1, 24, 3, 31, 1, 40, 7, 30, 3, 32, 63, 1, 1, 1, 1, 38, 1, 1, 5, 42, 3, 44, 3, 2, 1, 48, 1, 57, 3, 1, 1, 54, 3, 1, 1, 1, 1, 60, 1, 62, 1, 4, 127, 1, 3, 68, 3, 1, 1, 72, 3, 74, 1, 2, 1, 1, 3, 80, 3, 121, 1, 84, 1, 1, 1, 1, 1, 90, 117, 1, 3, 1, 1, 1, 3]

cp's OEIS Frontend

A348987 a(n) = gcd(sigma(n), A332994(n)).

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	3
7	8
8	15
9	13
10	1
11	12
12	1
13	14
14	1
15	1
16	31
17	18
18	3
19	20
20	3
21	1
22	1
23	24
24	3
25	31
26	1
27	40
28	7
29	30
30	3
31	32
32	63
33	1
34	1
35	1
36	1
37	38
38	1
39	1
40	5
41	42
42	3
43	44
44	3
45	2
46	1
47	48
48	1
49	57
50	3
51	1
52	1
53	54
54	3
55	1
56	1
57	1
58	1
59	60
60	1
61	62
62	1
63	4
64	127
65	1
66	3
67	68
68	3
69	1
70	1
71	72
72	3
73	74
74	1
75	2
76	1
77	1
78	3
79	80
80	3
81	121
82	1
83	84
84	1
85	1
86	1
87	1
88	1
89	90
90	117
91	1
92	3
93	1
94	1
95	1
96	3

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	3
7	8
8	15
9	13
10	1
11	12
12	1
13	14
14	1
15	1
16	31
17	18
18	3
19	20
20	3
21	1
22	1
23	24
24	3
25	31
26	1
27	40
28	7
29	30
30	3
31	32
32	63
33	1
34	1
35	1
36	1
37	38
38	1
39	1
40	5
41	42
42	3
43	44
44	3
45	2
46	1
47	48
48	1
49	57
50	3
51	1
52	1
53	54
54	3
55	1
56	1
57	1
58	1
59	60
60	1
61	62
62	1
63	4
64	127
65	1
66	3
67	68
68	3
69	1
70	1
71	72
72	3
73	74
74	1
75	2
76	1
77	1
78	3
79	80
80	3
81	121
82	1
83	84
84	1
85	1
86	1
87	1
88	1
89	90
90	117
91	1
92	3
93	1
94	1
95	1
96	3

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	3
7	8
8	15
9	13
10	1
11	12
12	1
13	14
14	1
15	1
16	31
17	18
18	3
19	20
20	3
21	1
22	1
23	24
24	3
25	31
26	1
27	40
28	7
29	30
30	3
31	32
32	63
33	1
34	1
35	1
36	1
37	38
38	1
39	1
40	5
41	42
42	3
43	44
44	3
45	2
46	1
47	48
48	1
49	57
50	3
51	1
52	1
53	54
54	3
55	1
56	1
57	1
58	1
59	60
60	1
61	62
62	1
63	4
64	127
65	1
66	3
67	68
68	3
69	1
70	1
71	72
72	3
73	74
74	1
75	2
76	1
77	1
78	3
79	80
80	3
81	121
82	1
83	84
84	1
85	1
86	1
87	1
88	1
89	90
90	117
91	1
92	3
93	1
94	1
95	1
96	3