A350623 - cp's OEIS frontend

A350623 a(n) = denominator of the X-coordinate of n*P where P is the generator [0,0] for rational points on the curve y^2 + y = x^3 + x^2.

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	9
7	1
8	49
9	121
10	400
11	361
12	7569
13	36481
14	38809
15	1036324
16	7187761
17	67092481
18	34117281
19	6607901521
20	68162766400
21	385083543601
22	9202249657441
23	209674135856641
24	4853089476046161
25	7099336433764
26	2600282294202480889
27	60193393235277536641
28	1371165544633857017809

[1, 1, 1, 1, 4, 9, 1, 49, 121, 400, 361, 7569, 36481, 38809, 1036324, 7187761, 67092481, 34117281, 6607901521, 68162766400, 385083543601, 9202249657441, 209674135856641, 4853089476046161, 7099336433764, 2600282294202480889, 60193393235277536641, 1371165544633857017809]

cp's OEIS Frontend

A350623 a(n) = denominator of the X-coordinate of n*P where P is the generator [0,0] for rational points on the curve y^2 + y = x^3 + x^2.

Table of values

List of values