A348946 - cp's OEIS frontend

A348946 a(n) = gcd(sigma(n), A348944(n)), where A348944 is the arithmetic mean of A003959 and A034448, and sigma is the sum of divisors function.

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	3
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	1
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	12
25	31
26	42
27	2
28	56
29	30
30	72
31	32
32	3
33	48
34	54
35	48
36	1
37	38
38	60
39	56
40	18
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	4
49	57
50	93
51	72
52	98
53	54
54	6
55	72
56	24
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	1
65	84
66	144
67	68
68	126
69	96
70	144
71	72
72	3
73	74
74	114
75	124
76	140
77	96
78	168
79	80
80	6
81	1
82	126

[1, 3, 4, 7, 6, 12, 8, 3, 13, 18, 12, 28, 14, 24, 24, 1, 18, 39, 20, 42, 32, 36, 24, 12, 31, 42, 2, 56, 30, 72, 32, 3, 48, 54, 48, 1, 38, 60, 56, 18, 42, 96, 44, 84, 78, 72, 48, 4, 57, 93, 72, 98, 54, 6, 72, 24, 80, 90, 60, 168, 62, 96, 104, 1, 84, 144, 68, 126, 96, 144, 72, 3, 74, 114, 124, 140, 96, 168, 80, 6, 1, 126]

cp's OEIS Frontend

A348946 a(n) = gcd(sigma(n), A348944(n)), where A348944 is the arithmetic mean of A003959 and A034448, and sigma is the sum of divisors function.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	3
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	1
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	12
25	31
26	42
27	2
28	56
29	30
30	72
31	32
32	3
33	48
34	54
35	48
36	1
37	38
38	60
39	56
40	18
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	4
49	57
50	93
51	72
52	98
53	54
54	6
55	72
56	24
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	1
65	84
66	144
67	68
68	126
69	96
70	144
71	72
72	3
73	74
74	114
75	124
76	140
77	96
78	168
79	80
80	6
81	1
82	126

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	3
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	1
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	12
25	31
26	42
27	2
28	56
29	30
30	72
31	32
32	3
33	48
34	54
35	48
36	1
37	38
38	60
39	56
40	18
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	4
49	57
50	93
51	72
52	98
53	54
54	6
55	72
56	24
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	1
65	84
66	144
67	68
68	126
69	96
70	144
71	72
72	3
73	74
74	114
75	124
76	140
77	96
78	168
79	80
80	6
81	1
82	126

n	a(n)
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	3
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	1
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	12
25	31
26	42
27	2
28	56
29	30
30	72
31	32
32	3
33	48
34	54
35	48
36	1
37	38
38	60
39	56
40	18
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	4
49	57
50	93
51	72
52	98
53	54
54	6
55	72
56	24
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	1
65	84
66	144
67	68
68	126
69	96
70	144
71	72
72	3
73	74
74	114
75	124
76	140
77	96
78	168
79	80
80	6
81	1
82	126