A383469 - cp's OEIS frontend

A383469 Semiprimes k such that A001358(k) + k and A001358(k) - k are also semiprimes.

n	a(n)
1	4
2	6
3	46
4	55
5	87
6	93
7	94
8	206
9	298
10	326
11	362
12	382
13	394
14	542
15	562
16	629
17	758
18	841
19	866
20	926
21	993
22	1046
23	1079
24	1147
25	1167
26	1234
27	1317
28	1469
29	1477
30	1561
31	1774
32	1895
33	2047
34	2227
35	2245
36	2515
37	2638
38	2705
39	2894
40	2902
41	3007
42	3031
43	3063
44	3202
45	3269
46	3409
47	3453
48	3466
49	3487
50	3809
51	3891
52	4058
53	4174
54	4207

[4, 6, 46, 55, 87, 93, 94, 206, 298, 326, 362, 382, 394, 542, 562, 629, 758, 841, 866, 926, 993, 1046, 1079, 1147, 1167, 1234, 1317, 1469, 1477, 1561, 1774, 1895, 2047, 2227, 2245, 2515, 2638, 2705, 2894, 2902, 3007, 3031, 3063, 3202, 3269, 3409, 3453, 3466, 3487, 3809, 3891, 4058, 4174, 4207]

cp's OEIS Frontend

A383469 Semiprimes k such that A001358(k) + k and A001358(k) - k are also semiprimes.

Table of values

List of values