A067533 - cp's OEIS frontend

A067533 Numbers k such that both k - tau(k) and k + tau(k) are prime where tau(k) = A000005(k).

n	a(n)
1	5
2	15
3	27
4	33
5	57
6	93
7	105
8	165
9	177
10	189
11	231
12	237
13	245
14	267
15	275
16	285
17	345
18	375
19	393
20	425
21	453
22	555
23	567
24	573
25	597
26	609
27	637
28	651
29	687
30	723
31	833
32	933
33	1005
34	1025
35	1095
36	1167
37	1209
38	1221
39	1227
40	1293
41	1311
42	1431
43	1445
44	1479
45	1491
46	1527
47	1551
48	1563
49	1573

[5, 15, 27, 33, 57, 93, 105, 165, 177, 189, 231, 237, 245, 267, 275, 285, 345, 375, 393, 425, 453, 555, 567, 573, 597, 609, 637, 651, 687, 723, 833, 933, 1005, 1025, 1095, 1167, 1209, 1221, 1227, 1293, 1311, 1431, 1445, 1479, 1491, 1527, 1551, 1563, 1573]

cp's OEIS Frontend

A067533 Numbers k such that both k - tau(k) and k + tau(k) are prime where tau(k) = A000005(k).

Table of values

List of values