A176191 - cp's OEIS frontend

A176191 Numbers n such that semiprime(n)-1 is prime, where semiprime(n) is A001358.

n	a(n)
1	1
2	2
3	5
4	14
5	22
6	25
7	52
8	62
9	88
10	100
11	126
12	133
13	142
14	169
15	188
16	198
17	202
18	222
19	229
20	263
21	299
22	321
23	340
24	354
25	359
26	364
27	388
28	407
29	426
30	465
31	478
32	504
33	539
34	556
35	577
36	579
37	611
38	668
39	700
40	722
41	737
42	781
43	797
44	814
45	857
46	905
47	916
48	932
49	984
50	1033
51	1108
52	1118
53	1148

[1, 2, 5, 14, 22, 25, 52, 62, 88, 100, 126, 133, 142, 169, 188, 198, 202, 222, 229, 263, 299, 321, 340, 354, 359, 364, 388, 407, 426, 465, 478, 504, 539, 556, 577, 579, 611, 668, 700, 722, 737, 781, 797, 814, 857, 905, 916, 932, 984, 1033, 1108, 1118, 1148]

cp's OEIS Frontend

A176191 Numbers n such that semiprime(n)-1 is prime, where semiprime(n) is A001358.

Table of values

List of values