A227609 - cp's OEIS frontend

A227609 Determinant of the (p_n-1)/2 X (p_n-1)/2 matrix with (i,j)-entry being the Legendre symbol((i^2+j^2)/p_n), where p_n is the n-th prime.

n	a(n)
2	-1
3	1
4	-4
5	-16
6	-27
7	441
8	-1024
9	-1024
10	34445
11	-13778944
12	82719025
13	48841786125
14	-67649929216
15	-564926611456
16	-153908556861703
17	-25481517249593344
18	2456184022341328125
19	-399780402627654713344
20	-14448269983744
21	-214168150727821285287075

[-1, 1, -4, -16, -27, 441, -1024, -1024, 34445, -13778944, 82719025, 48841786125, -67649929216, -564926611456, -153908556861703, -25481517249593344, 2456184022341328125, -399780402627654713344, -14448269983744, -214168150727821285287075]

cp's OEIS Frontend

A227609 Determinant of the (p_n-1)/2 X (p_n-1)/2 matrix with (i,j)-entry being the Legendre symbol((i^2+j^2)/p_n), where p_n is the n-th prime.

Table of values

List of values