A082393 - cp's OEIS frontend

A082393 Let p = n-th prime of the form 4k+1, take the integer solution (x,y) to the Pellian equation x^2 - p*y^2 = 1 with the smallest y >= 1; sequence gives value of y.

n	a(n)
1	4
2	180
3	8
4	1820
5	12
6	320
7	9100
8	226153980
9	267000
10	53000
11	6377352
12	20
13	15140424455100
14	113296
15	519712
16	2113761020
17	3726964292220
18	190060
19	183567298683461940
20	448036604040
21	28
22	386460
23	70255304
24	649641205044600

[4, 180, 8, 1820, 12, 320, 9100, 226153980, 267000, 53000, 6377352, 20, 15140424455100, 113296, 519712, 2113761020, 3726964292220, 190060, 183567298683461940, 448036604040, 28, 386460, 70255304, 649641205044600]

cp's OEIS Frontend

A082393 Let p = n-th prime of the form 4k+1, take the integer solution (x,y) to the Pellian equation x^2 - p*y^2 = 1 with the smallest y >= 1; sequence gives value of y.

Table of values

List of values