A327096 - cp's OEIS frontend

A327096 Expansion of Sum_{k>=1} sigma(k) * x^k / (1 - x^(2*k)), where sigma = A000203.

n	a(n)
1	1
2	3
3	5
4	7
5	7
6	15
7	9
8	15
9	18
10	21
11	13
12	35
13	15
14	27
15	35
16	31
17	19
18	54
19	21
20	49
21	45
22	39
23	25
24	75
25	38
26	45
27	58
28	63
29	31
30	105
31	33
32	63
33	65
34	57
35	63
36	126
37	39
38	63
39	75
40	105
41	43
42	135
43	45
44	91
45	126
46	75
47	49
48	155
49	66
50	114
51	95
52	105
53	55
54	174
55	91
56	135
57	105
58	93
59	61
60	245
61	63
62	99

[1, 3, 5, 7, 7, 15, 9, 15, 18, 21, 13, 35, 15, 27, 35, 31, 19, 54, 21, 49, 45, 39, 25, 75, 38, 45, 58, 63, 31, 105, 33, 63, 65, 57, 63, 126, 39, 63, 75, 105, 43, 135, 45, 91, 126, 75, 49, 155, 66, 114, 95, 105, 55, 174, 91, 135, 105, 93, 61, 245, 63, 99]

cp's OEIS Frontend

A327096 Expansion of Sum_{k>=1} sigma(k) * x^k / (1 - x^(2*k)), where sigma = A000203.

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	7
5	7
6	15
7	9
8	15
9	18
10	21
11	13
12	35
13	15
14	27
15	35
16	31
17	19
18	54
19	21
20	49
21	45
22	39
23	25
24	75
25	38
26	45
27	58
28	63
29	31
30	105
31	33
32	63
33	65
34	57
35	63
36	126
37	39
38	63
39	75
40	105
41	43
42	135
43	45
44	91
45	126
46	75
47	49
48	155
49	66
50	114
51	95
52	105
53	55
54	174
55	91
56	135
57	105
58	93
59	61
60	245
61	63
62	99

n	a(n)
1	1
2	3
3	5
4	7
5	7
6	15
7	9
8	15
9	18
10	21
11	13
12	35
13	15
14	27
15	35
16	31
17	19
18	54
19	21
20	49
21	45
22	39
23	25
24	75
25	38
26	45
27	58
28	63
29	31
30	105
31	33
32	63
33	65
34	57
35	63
36	126
37	39
38	63
39	75
40	105
41	43
42	135
43	45
44	91
45	126
46	75
47	49
48	155
49	66
50	114
51	95
52	105
53	55
54	174
55	91
56	135
57	105
58	93
59	61
60	245
61	63
62	99

n	a(n)
1	1
2	3
3	5
4	7
5	7
6	15
7	9
8	15
9	18
10	21
11	13
12	35
13	15
14	27
15	35
16	31
17	19
18	54
19	21
20	49
21	45
22	39
23	25
24	75
25	38
26	45
27	58
28	63
29	31
30	105
31	33
32	63
33	65
34	57
35	63
36	126
37	39
38	63
39	75
40	105
41	43
42	135
43	45
44	91
45	126
46	75
47	49
48	155
49	66
50	114
51	95
52	105
53	55
54	174
55	91
56	135
57	105
58	93
59	61
60	245
61	63
62	99