A284173 - cp's OEIS frontend

A284173 a(n) = (Sum_{k=1..n} q(k+1-q(k))) mod n where q(k) = A005185(k).

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

[0, 0, 0, 0, 1, 2, 3, 5, 7, 9, 1, 2, 4, 7, 9, 12, 15, 0, 3, 6, 9, 12, 17, 20, 0, 4, 8, 12, 16, 22, 26, 31, 4, 9, 14, 20, 26, 31, 37, 3, 8, 14, 20, 26, 32, 38, 1, 4, 11, 18, 23, 30, 39, 46, 53, 6, 12, 20, 28, 36, 44, 56, 1, 9, 21, 28, 36, 46, 57, 68, 9, 20, 30, 39, 48, 60, 69, 2, 12]

cp's OEIS Frontend

A284173 a(n) = (Sum_{k=1..n} q(k+1-q(k))) mod n where q(k) = A005185(k).

Table of values

List of values

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

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

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