A381792 - cp's OEIS frontend

A381792 Numbers k such that k + prime(k) is prime and k + semiprime(k) is semiprime.

n	a(n)
1	4
2	6
3	18
4	24
5	34
6	72
7	96
8	98
9	116
10	130
11	150
12	172
13	200
14	206
15	270
16	290
17	350
18	356
19	362
20	386
21	410
22	420
23	450
24	504
25	508
26	554
27	576
28	618
29	666
30	682
31	720
32	738
33	754
34	782
35	784
36	808
37	820
38	832
39	858
40	892
41	960
42	962
43	984
44	1016
45	1050
46	1102
47	1110
48	1154
49	1162
50	1168
51	1176
52	1184
53	1206
54	1256
55	1284
56	1296
57	1302
58	1360

[4, 6, 18, 24, 34, 72, 96, 98, 116, 130, 150, 172, 200, 206, 270, 290, 350, 356, 362, 386, 410, 420, 450, 504, 508, 554, 576, 618, 666, 682, 720, 738, 754, 782, 784, 808, 820, 832, 858, 892, 960, 962, 984, 1016, 1050, 1102, 1110, 1154, 1162, 1168, 1176, 1184, 1206, 1256, 1284, 1296, 1302, 1360]

cp's OEIS Frontend

A381792 Numbers k such that k + prime(k) is prime and k + semiprime(k) is semiprime.

Table of values

List of values