A028941 - cp's OEIS frontend

A028941 Denominator of X-coordinate of n*P where P is the generator [0,0] for rational points on curve y^2+y = x^3-x.

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	1
7	9
8	25
9	49
10	16
11	529
12	841
13	3481
14	16641
15	98596
16	4225
17	2337841
18	13608721
19	67387681
20	264517696
21	6941055969
22	12925188721
23	384768368209
24	5677664356225
25	61935294530404
26	49020596163841
27	16063784753682169

[1, 1, 1, 1, 4, 1, 9, 25, 49, 16, 529, 841, 3481, 16641, 98596, 4225, 2337841, 13608721, 67387681, 264517696, 6941055969, 12925188721, 384768368209, 5677664356225, 61935294530404, 49020596163841, 16063784753682169]

cp's OEIS Frontend

A028941 Denominator of X-coordinate of n*P where P is the generator [0,0] for rational points on curve y^2+y = x^3-x.

Table of values

List of values