A308420 - cp's OEIS frontend

A308420 Squarefree numbers d of the form s^2 + r, where r divides 4s, such that Q(sqrt(d)) has class number 1.

n	a(n)
1	2
2	3
3	5
4	6
5	7
6	11
7	13
8	14
9	17
10	21
11	23
12	29
13	33
14	37
15	38
16	47
17	53
18	62
19	69
20	77
21	83
22	93
23	101
24	141
25	167
26	173
27	197
28	213
29	227
30	237
31	293
32	398
33	413
34	437
35	453
36	573
37	677
38	717
39	1077
40	1133
41	1253
42	1293
43	1757

[2, 3, 5, 6, 7, 11, 13, 14, 17, 21, 23, 29, 33, 37, 38, 47, 53, 62, 69, 77, 83, 93, 101, 141, 167, 173, 197, 213, 227, 237, 293, 398, 413, 437, 453, 573, 677, 717, 1077, 1133, 1253, 1293, 1757]

cp's OEIS Frontend

A308420 Squarefree numbers d of the form s^2 + r, where r divides 4s, such that Q(sqrt(d)) has class number 1.

Table of values

List of values