A309324 - cp's OEIS frontend

A309324 Expansion of Sum_{k>=1} psi(k) * x^k/(1 + x^k), where psi = Dedekind psi function (A001615).

n	a(n)
1	1
2	2
3	5
4	2
5	7
6	10
7	9
8	2
9	17
10	14
11	13
12	10
13	15
14	18
15	35
16	2
17	19
18	34
19	21
20	14
21	45
22	26
23	25
24	10
25	37
26	30
27	53
28	18
29	31
30	70
31	33
32	2
33	65
34	38
35	63
36	34
37	39
38	42
39	75
40	14
41	43
42	90
43	45
44	26
45	119
46	50
47	49
48	10
49	65
50	74
51	95
52	30
53	55
54	106
55	91
56	18
57	105
58	62
59	61
60	70
61	63
62	66
63	153
64	2
65	105
66	130
67	69
68	38
69	125
70	126
71	73

[1, 2, 5, 2, 7, 10, 9, 2, 17, 14, 13, 10, 15, 18, 35, 2, 19, 34, 21, 14, 45, 26, 25, 10, 37, 30, 53, 18, 31, 70, 33, 2, 65, 38, 63, 34, 39, 42, 75, 14, 43, 90, 45, 26, 119, 50, 49, 10, 65, 74, 95, 30, 55, 106, 91, 18, 105, 62, 61, 70, 63, 66, 153, 2, 105, 130, 69, 38, 125, 126, 73]

cp's OEIS Frontend

A309324 Expansion of Sum_{k>=1} psi(k) * x^k/(1 + x^k), where psi = Dedekind psi function (A001615).

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	2
5	7
6	10
7	9
8	2
9	17
10	14
11	13
12	10
13	15
14	18
15	35
16	2
17	19
18	34
19	21
20	14
21	45
22	26
23	25
24	10
25	37
26	30
27	53
28	18
29	31
30	70
31	33
32	2
33	65
34	38
35	63
36	34
37	39
38	42
39	75
40	14
41	43
42	90
43	45
44	26
45	119
46	50
47	49
48	10
49	65
50	74
51	95
52	30
53	55
54	106
55	91
56	18
57	105
58	62
59	61
60	70
61	63
62	66
63	153
64	2
65	105
66	130
67	69
68	38
69	125
70	126
71	73

n	a(n)
1	1
2	2
3	5
4	2
5	7
6	10
7	9
8	2
9	17
10	14
11	13
12	10
13	15
14	18
15	35
16	2
17	19
18	34
19	21
20	14
21	45
22	26
23	25
24	10
25	37
26	30
27	53
28	18
29	31
30	70
31	33
32	2
33	65
34	38
35	63
36	34
37	39
38	42
39	75
40	14
41	43
42	90
43	45
44	26
45	119
46	50
47	49
48	10
49	65
50	74
51	95
52	30
53	55
54	106
55	91
56	18
57	105
58	62
59	61
60	70
61	63
62	66
63	153
64	2
65	105
66	130
67	69
68	38
69	125
70	126
71	73

n	a(n)
1	1
2	2
3	5
4	2
5	7
6	10
7	9
8	2
9	17
10	14
11	13
12	10
13	15
14	18
15	35
16	2
17	19
18	34
19	21
20	14
21	45
22	26
23	25
24	10
25	37
26	30
27	53
28	18
29	31
30	70
31	33
32	2
33	65
34	38
35	63
36	34
37	39
38	42
39	75
40	14
41	43
42	90
43	45
44	26
45	119
46	50
47	49
48	10
49	65
50	74
51	95
52	30
53	55
54	106
55	91
56	18
57	105
58	62
59	61
60	70
61	63
62	66
63	153
64	2
65	105
66	130
67	69
68	38
69	125
70	126
71	73