A228005 - cp's OEIS frontend

A228005 Determinant of the (p_n-1)/2-by-(p_n-1)/2 matrix with (i,j)-entry being the Legendre symbol ((i^2+j^2+1)/p_n), where p_n is the n-th prime.

n	a(n)
2	0
3	-2
4	1
5	-2
6	-72
7	-672
8	136
9	4352
10	-265600
11	602048
12	2658941440
13	128532940800
14	7138246144
15	-277070036992
16	-5928696847474688
17	140393397382594560
18	-476899996446720000
19	73073105939334987776
20	-197109670210161672192

[0, -2, 1, -2, -72, -672, 136, 4352, -265600, 602048, 2658941440, 128532940800, 7138246144, -277070036992, -5928696847474688, 140393397382594560, -476899996446720000, 73073105939334987776, -197109670210161672192]

cp's OEIS Frontend

A228005 Determinant of the (p_n-1)/2-by-(p_n-1)/2 matrix with (i,j)-entry being the Legendre symbol ((i^2+j^2+1)/p_n), where p_n is the n-th prime.

Table of values

List of values