A180782 - cp's OEIS frontend

A180782 T(n,k)=number of distinct solutions of sum{i=1..k}(x(2i-1)*x(2i)) = 0 (mod n), with x() only in 1..n-1.

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	0
8	0
9	2
10	1
11	0
12	1
13	5
14	6
15	0
16	0
17	0
18	3
19	14
20	13
21	2
22	0
23	1
24	7
25	34
26	42
27	23
28	0
29	0
30	0
31	12
32	62
33	145
34	119
35	36
36	3
37	0
38	1
39	9
40	118
41	402
42	522
43	253
44	62
45	3
46	0
47	0
48	15
49	198
50	995
51	1960
52	1518
53	526
54	78
55	4
56	0
57	1
58	22
59	327
60	2294
61	6518
62	7587
63	4041
64	944
65	123
66	0
67	0
68	0
69	18
70	499
71	4856
72	19467
73	32893

[0, 0, 0, 0, 1, 0, 0, 0, 2, 1, 0, 1, 5, 6, 0, 0, 0, 3, 14, 13, 2, 0, 1, 7, 34, 42, 23, 0, 0, 0, 12, 62, 145, 119, 36, 3, 0, 1, 9, 118, 402, 522, 253, 62, 3, 0, 0, 15, 198, 995, 1960, 1518, 526, 78, 4, 0, 1, 22, 327, 2294, 6518, 7587, 4041, 944, 123, 0, 0, 0, 18, 499, 4856, 19467, 32893]

cp's OEIS Frontend

A180782 T(n,k)=number of distinct solutions of sum{i=1..k}(x(2i-1)*x(2i)) = 0 (mod n), with x() only in 1..n-1.

Table of values

List of values