A180773 - cp's OEIS frontend

A180773 Number of distinct solutions of Sum_{i=1..2} (x(2i-1)*x(2i)) = 0 (mod n), with x() only in 1..n-1.

n	a(n)
1	0
2	1
3	2
4	6
5	13
6	23
7	36
8	62
9	78
10	123
11	150
12	238
13	255
14	355
15	427
16	567
17	580
18	864
19	810
20	1202
21	1232
22	1471
23	1452
24	2310
25	1960
26	2479
27	2712
28	3414
29	2947
30	4649
31	3600
32	5126
33	5022
34	5673
35	5845
36	8457
37	6165
38	7975
39	8405
40	11062
41	8410
42	13133
43	9702
44	13726
45	14475
46	14323
47	12696

[0, 1, 2, 6, 13, 23, 36, 62, 78, 123, 150, 238, 255, 355, 427, 567, 580, 864, 810, 1202, 1232, 1471, 1452, 2310, 1960, 2479, 2712, 3414, 2947, 4649, 3600, 5126, 5022, 5673, 5845, 8457, 6165, 7975, 8405, 11062, 8410, 13133, 9702, 13726, 14475, 14323, 12696]

cp's OEIS Frontend

A180773 Number of distinct solutions of Sum_{i=1..2} (x(2i-1)*x(2i)) = 0 (mod n), with x() only in 1..n-1.

Table of values

List of values