A028939 - cp's OEIS frontend

A028939 a(n) = denominator of y-coordinate of (2n)*P where P is the generator for rational points on the curve y^2 + y = x^3 - x.

n	a(n)
1	1
2	1
3	1
4	125
5	64
6	24389
7	2146689
8	274625
9	50202571769
10	4302115807744
11	1469451780501769
12	13528653463047586625
13	343216282443844010111
14	63061816101171948456692661
15	495133617181351428873673516736

[1, 1, 1, 125, 64, 24389, 2146689, 274625, 50202571769, 4302115807744, 1469451780501769, 13528653463047586625, 343216282443844010111, 63061816101171948456692661, 495133617181351428873673516736]

cp's OEIS Frontend

A028939 a(n) = denominator of y-coordinate of (2n)*P where P is the generator for rational points on the curve y^2 + y = x^3 - x.

Table of values

List of values