A249052 - cp's OEIS frontend

A249052 Odd numbers n without prime factors of the form 4k+3 such that x^2-n*y^2=-1 has no solutions.

n	a(n)
1	205
2	221
3	305
4	377
5	505
6	545
7	689
8	725
9	745
10	793
11	905
12	1205
13	1345
14	1405
15	1469
16	1513
17	1517
18	1537
19	1717
20	1885
21	1945
22	1961
23	2005
24	2041
25	2045
26	2105
27	2225
28	2245
29	2329
30	2353
31	2525
32	2533
33	2669
34	2701
35	2845
36	2993
37	3005
38	3205
39	3305
40	3497
41	3505
42	3737
43	3757
44	3805
45	3893
46	3965
47	4069
48	4105
49	4145
50	4205
51	4321
52	4369

[205, 221, 305, 377, 505, 545, 689, 725, 745, 793, 905, 1205, 1345, 1405, 1469, 1513, 1517, 1537, 1717, 1885, 1945, 1961, 2005, 2041, 2045, 2105, 2225, 2245, 2329, 2353, 2525, 2533, 2669, 2701, 2845, 2993, 3005, 3205, 3305, 3497, 3505, 3737, 3757, 3805, 3893, 3965, 4069, 4105, 4145, 4205, 4321, 4369]

cp's OEIS Frontend

A249052 Odd numbers n without prime factors of the form 4k+3 such that x^2-n*y^2=-1 has no solutions.

Table of values

List of values