A350801 - cp's OEIS frontend

A350801 a(n) = n(tau(n) + 1) - 2sigma(n) for n>=1, with a(0)=0.

n	a(n)
0	0
1	0
2	0
3	1
4	2
5	3
6	6
7	5
8	10
9	10
10	14
11	9
12	28
13	11
14	22
15	27
16	34
17	15
18	48
19	17
20	56
21	41
22	38
23	21
24	96
25	38
26	46
27	55
28	84
29	27
30	126
31	29
32	98
33	69
34	62
35	79
36	178
37	35
38	70
39	83
40	180
41	39
42	186
43	41
44	140
45	159
46	86
47	45
48	280
49	82
50	164
51	111
52	168
53	51
54	246
55	131
56	264
57	125
58	110
59	57
60	444
61	59
62	118
63	233
64	258
65	157

[0, 0, 0, 1, 2, 3, 6, 5, 10, 10, 14, 9, 28, 11, 22, 27, 34, 15, 48, 17, 56, 41, 38, 21, 96, 38, 46, 55, 84, 27, 126, 29, 98, 69, 62, 79, 178, 35, 70, 83, 180, 39, 186, 41, 140, 159, 86, 45, 280, 82, 164, 111, 168, 51, 246, 131, 264, 125, 110, 57, 444, 59, 118, 233, 258, 157]

cp's OEIS Frontend

A350801 a(n) = n(tau(n) + 1) - 2sigma(n) for n>=1, with a(0)=0.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	1
4	2
5	3
6	6
7	5
8	10
9	10
10	14
11	9
12	28
13	11
14	22
15	27
16	34
17	15
18	48
19	17
20	56
21	41
22	38
23	21
24	96
25	38
26	46
27	55
28	84
29	27
30	126
31	29
32	98
33	69
34	62
35	79
36	178
37	35
38	70
39	83
40	180
41	39
42	186
43	41
44	140
45	159
46	86
47	45
48	280
49	82
50	164
51	111
52	168
53	51
54	246
55	131
56	264
57	125
58	110
59	57
60	444
61	59
62	118
63	233
64	258
65	157

n	a(n)
0	0
1	0
2	0
3	1
4	2
5	3
6	6
7	5
8	10
9	10
10	14
11	9
12	28
13	11
14	22
15	27
16	34
17	15
18	48
19	17
20	56
21	41
22	38
23	21
24	96
25	38
26	46
27	55
28	84
29	27
30	126
31	29
32	98
33	69
34	62
35	79
36	178
37	35
38	70
39	83
40	180
41	39
42	186
43	41
44	140
45	159
46	86
47	45
48	280
49	82
50	164
51	111
52	168
53	51
54	246
55	131
56	264
57	125
58	110
59	57
60	444
61	59
62	118
63	233
64	258
65	157

cp's OEIS Frontend

A350801 a(n) = n*(tau(n) + 1) - 2*sigma(n) for n>=1, with a(0)=0.

Table of values

List of values

A350801 a(n) = n(tau(n) + 1) - 2sigma(n) for n>=1, with a(0)=0.

n	a(n)
0	0
1	0
2	0
3	1
4	2
5	3
6	6
7	5
8	10
9	10
10	14
11	9
12	28
13	11
14	22
15	27
16	34
17	15
18	48
19	17
20	56
21	41
22	38
23	21
24	96
25	38
26	46
27	55
28	84
29	27
30	126
31	29
32	98
33	69
34	62
35	79
36	178
37	35
38	70
39	83
40	180
41	39
42	186
43	41
44	140
45	159
46	86
47	45
48	280
49	82
50	164
51	111
52	168
53	51
54	246
55	131
56	264
57	125
58	110
59	57
60	444
61	59
62	118
63	233
64	258
65	157