A244030 - cp's OEIS frontend

A244030 Composite numbers n such that the quadratic form x^2+n*y^2 does not represent a prime strictly between n and 2n.

n	a(n)
1	8
2	24
3	26
4	35
5	56
6	68
7	119
8	120
9	125
10	134
11	185
12	194
13	206
14	290
15	314
16	326
17	341
18	356
19	371
20	404
21	464
22	489
23	524
24	545
25	626
26	635
27	671
28	698
29	699
30	749
31	755
32	815
33	914
34	978
35	1011
36	1141
37	1161
38	1190
39	1205
40	1232
41	1316
42	1529
43	1595
44	1634
45	1760
46	1784
47	2021
48	2546
49	3419
50	3464
51	3485
52	3561
53	3674
54	3746
55	3806
56	4094
57	4616
58	4904
59	6041
60	7061
61	7556
62	8876
63	9974
64	12326
65	17531
66	17786
67	43181

[8, 24, 26, 35, 56, 68, 119, 120, 125, 134, 185, 194, 206, 290, 314, 326, 341, 356, 371, 404, 464, 489, 524, 545, 626, 635, 671, 698, 699, 749, 755, 815, 914, 978, 1011, 1141, 1161, 1190, 1205, 1232, 1316, 1529, 1595, 1634, 1760, 1784, 2021, 2546, 3419, 3464, 3485, 3561, 3674, 3746, 3806, 4094, 4616, 4904, 6041, 7061, 7556, 8876, 9974, 12326, 17531, 17786, 43181]

cp's OEIS Frontend

A244030 Composite numbers n such that the quadratic form x^2+n*y^2 does not represent a prime strictly between n and 2n.

Table of values

List of values