A173082 - cp's OEIS frontend

A173082 Semiprimes q such that q^2+2 and q^2-2 are also semiprimes.

n	a(n)
1	6
2	51
3	65
4	115
5	133
6	141
7	159
8	187
9	201
10	209
11	213
12	287
13	291
14	295
15	327
16	339
17	361
18	407
19	411
20	413
21	471
22	493
23	511
24	519
25	537
26	559
27	579
28	597
29	633
30	649
31	687
32	695
33	723
34	799
35	813
36	831
37	835
38	871
39	917
40	939
41	1007
42	1041
43	1047
44	1079
45	1135
46	1167
47	1189
48	1195
49	1199
50	1227

[6, 51, 65, 115, 133, 141, 159, 187, 201, 209, 213, 287, 291, 295, 327, 339, 361, 407, 411, 413, 471, 493, 511, 519, 537, 559, 579, 597, 633, 649, 687, 695, 723, 799, 813, 831, 835, 871, 917, 939, 1007, 1041, 1047, 1079, 1135, 1167, 1189, 1195, 1199, 1227]

cp's OEIS Frontend

A173082 Semiprimes q such that q^2+2 and q^2-2 are also semiprimes.

Table of values

List of values