A180803 - cp's OEIS frontend

A180803 T(n,k)=number of distinct solutions to sum{i=1..k}(x(2i-1)*x(2i)) == 0 (mod n), with x() in 0..n-1.

n	a(n)
1	1
2	1
3	2
4	1
5	4
6	3
7	1
8	6
9	8
10	5
11	1
12	9
13	21
14	20
15	5
16	1
17	12
18	45
19	68
20	28
21	8
22	1
23	16
24	87
25	205
26	142
27	56
28	7
29	1
30	20
31	159
32	549
33	620
34	355
35	64
36	11
37	1
38	25
39	270
40	1336
41	2338
42	1957
43	589
44	122
45	12
46	1
47	30
48	435
49	3000
50	7770
51	9383
52	4507
53	1250
54	150
55	14
56	1
57	36
58	676
59	6302
60	23282
61	39768
62	28783
63	11171

[1, 1, 2, 1, 4, 3, 1, 6, 8, 5, 1, 9, 21, 20, 5, 1, 12, 45, 68, 28, 8, 1, 16, 87, 205, 142, 56, 7, 1, 20, 159, 549, 620, 355, 64, 11, 1, 25, 270, 1336, 2338, 1957, 589, 122, 12, 1, 30, 435, 3000, 7770, 9383, 4507, 1250, 150, 14, 1, 36, 676, 6302, 23282, 39768, 28783, 11171]

cp's OEIS Frontend

A180803 T(n,k)=number of distinct solutions to sum{i=1..k}(x(2i-1)*x(2i)) == 0 (mod n), with x() in 0..n-1.

Table of values

List of values