A180774 - cp's OEIS frontend

A180774 Number of distinct solutions of sum{i=1..3}(x(2i-1)*x(2i)) = 0 (mod n), with x() only in 1..n-1.

n	a(n)
1	0
2	0
3	5
4	14
5	42
6	119
7	253
8	526
9	944
10	1702
11	2655
12	4510
13	6284
14	9867
15	13519
16	19980
17	25128
18	37286
19	44562
20	63802
21	76850
22	102370
23	118591
24	168208
25	183320
26	241554
27	279852
28	359754
29	387016
30	528861
31	543620
32	712450
33	780810
34	953120
35	1025355
36	1360255

[0, 0, 5, 14, 42, 119, 253, 526, 944, 1702, 2655, 4510, 6284, 9867, 13519, 19980, 25128, 37286, 44562, 63802, 76850, 102370, 118591, 168208, 183320, 241554, 279852, 359754, 387016, 528861, 543620, 712450, 780810, 953120, 1025355, 1360255]

cp's OEIS Frontend

A180774 Number of distinct solutions of sum{i=1..3}(x(2i-1)*x(2i)) = 0 (mod n), with x() only in 1..n-1.

Table of values

List of values