A180799 - cp's OEIS frontend

A180799 Number of distinct solutions of sum{i=1..7}(x(2i-1)*x(2i)) = 0 (mod n), with x() in 0..n-1.

n	a(n)
1	1
2	20
3	270
4	3000
5	23282
6	151473
7	768541
8	3422978
9	12879078
10	44111410
11	133919379
12	381516366
13	988173838
14	2446846672
15	5633359713
16	12527643860
17	26226659375
18	53655084387
19	104124710377
20	198817175068
21	363133886202
22	654527617329

[1, 20, 270, 3000, 23282, 151473, 768541, 3422978, 12879078, 44111410, 133919379, 381516366, 988173838, 2446846672, 5633359713, 12527643860, 26226659375, 53655084387, 104124710377, 198817175068, 363133886202, 654527617329]

cp's OEIS Frontend

A180799 Number of distinct solutions of sum{i=1..7}(x(2i-1)*x(2i)) = 0 (mod n), with x() in 0..n-1.

Table of values

List of values