A306653 - cp's OEIS frontend

A306653 a(n) = Sum_{m=1..n} Sum_{k=1..n} [k divides n][n/k divides m]A008683(n/k)n/k[k divides m + 2^p]A008683(k)k, where p can be a positive integer: 1,2,3,4,5,...

n	a(n)
1	1
2	-2
3	-2
4	2
5	-2
6	4
7	-2
8	0
9	0
10	4
11	-2
12	-4
13	-2
14	4
15	4
16	0
17	-2
18	0
19	-2
20	-4
21	4
22	4
23	-2
24	0
25	0
26	4
27	0
28	-4
29	-2
30	-8
31	-2
32	0
33	4
34	4
35	4
36	0
37	-2
38	4
39	4
40	0
41	-2
42	-8
43	-2
44	-4
45	0
46	4
47	-2
48	0
49	0
50	0
51	4
52	-4
53	-2
54	0
55	4
56	0
57	4
58	4
59	-2
60	8
61	-2
62	4
63	0
64	0
65	4
66	-8
67	-2
68	-4
69	4
70	-8
71	-2
72	0
73	-2
74	4
75	0
76	-4
77	4
78	-8
79	-2
80	0
81	0
82	4
83	-2
84	8
85	4

[1, -2, -2, 2, -2, 4, -2, 0, 0, 4, -2, -4, -2, 4, 4, 0, -2, 0, -2, -4, 4, 4, -2, 0, 0, 4, 0, -4, -2, -8, -2, 0, 4, 4, 4, 0, -2, 4, 4, 0, -2, -8, -2, -4, 0, 4, -2, 0, 0, 0, 4, -4, -2, 0, 4, 0, 4, 4, -2, 8, -2, 4, 0, 0, 4, -8, -2, -4, 4, -8, -2, 0, -2, 4, 0, -4, 4, -8, -2, 0, 0, 4, -2, 8, 4]

cp's OEIS Frontend

A306653 a(n) = Sum_{m=1..n} Sum_{k=1..n} [k divides n][n/k divides m]A008683(n/k)n/k[k divides m + 2^p]A008683(k)k, where p can be a positive integer: 1,2,3,4,5,...

Table of values

List of values

n	a(n)
1	1
2	-2
3	-2
4	2
5	-2
6	4
7	-2
8	0
9	0
10	4
11	-2
12	-4
13	-2
14	4
15	4
16	0
17	-2
18	0
19	-2
20	-4
21	4
22	4
23	-2
24	0
25	0
26	4
27	0
28	-4
29	-2
30	-8
31	-2
32	0
33	4
34	4
35	4
36	0
37	-2
38	4
39	4
40	0
41	-2
42	-8
43	-2
44	-4
45	0
46	4
47	-2
48	0
49	0
50	0
51	4
52	-4
53	-2
54	0
55	4
56	0
57	4
58	4
59	-2
60	8
61	-2
62	4
63	0
64	0
65	4
66	-8
67	-2
68	-4
69	4
70	-8
71	-2
72	0
73	-2
74	4
75	0
76	-4
77	4
78	-8
79	-2
80	0
81	0
82	4
83	-2
84	8
85	4

n	a(n)
1	1
2	-2
3	-2
4	2
5	-2
6	4
7	-2
8	0
9	0
10	4
11	-2
12	-4
13	-2
14	4
15	4
16	0
17	-2
18	0
19	-2
20	-4
21	4
22	4
23	-2
24	0
25	0
26	4
27	0
28	-4
29	-2
30	-8
31	-2
32	0
33	4
34	4
35	4
36	0
37	-2
38	4
39	4
40	0
41	-2
42	-8
43	-2
44	-4
45	0
46	4
47	-2
48	0
49	0
50	0
51	4
52	-4
53	-2
54	0
55	4
56	0
57	4
58	4
59	-2
60	8
61	-2
62	4
63	0
64	0
65	4
66	-8
67	-2
68	-4
69	4
70	-8
71	-2
72	0
73	-2
74	4
75	0
76	-4
77	4
78	-8
79	-2
80	0
81	0
82	4
83	-2
84	8
85	4

cp's OEIS Frontend

A306653 a(n) = Sum_{m=1..n} Sum_{k=1..n} [k divides n]*[n/k divides m]*A008683(n/k)*n/k*[k divides m + 2^p]*A008683(k)*k, where p can be a positive integer: 1,2,3,4,5,...

Table of values

List of values

A306653 a(n) = Sum_{m=1..n} Sum_{k=1..n} [k divides n][n/k divides m]A008683(n/k)n/k[k divides m + 2^p]A008683(k)k, where p can be a positive integer: 1,2,3,4,5,...

n	a(n)
1	1
2	-2
3	-2
4	2
5	-2
6	4
7	-2
8	0
9	0
10	4
11	-2
12	-4
13	-2
14	4
15	4
16	0
17	-2
18	0
19	-2
20	-4
21	4
22	4
23	-2
24	0
25	0
26	4
27	0
28	-4
29	-2
30	-8
31	-2
32	0
33	4
34	4
35	4
36	0
37	-2
38	4
39	4
40	0
41	-2
42	-8
43	-2
44	-4
45	0
46	4
47	-2
48	0
49	0
50	0
51	4
52	-4
53	-2
54	0
55	4
56	0
57	4
58	4
59	-2
60	8
61	-2
62	4
63	0
64	0
65	4
66	-8
67	-2
68	-4
69	4
70	-8
71	-2
72	0
73	-2
74	4
75	0
76	-4
77	4
78	-8
79	-2
80	0
81	0
82	4
83	-2
84	8
85	4