A104485 - cp's OEIS frontend

A104485 Primes p = p(k) such that prime(k) + 2 and prime(k+1) + 2 are both semiprimes.

n	a(n)
1	19
2	31
3	47
4	83
5	109
6	113
7	127
8	199
9	251
10	257
11	293
12	353
13	401
14	443
15	467
16	479
17	487
18	491
19	499
20	503
21	557
22	571
23	577
24	647
25	677
26	743
27	761
28	787
29	829
30	863
31	911
32	937
33	941
34	947
35	971
36	977
37	983
38	1109
39	1187
40	1193
41	1291
42	1327
43	1361
44	1381
45	1399
46	1459
47	1499
48	1553
49	1559

[19, 31, 47, 83, 109, 113, 127, 199, 251, 257, 293, 353, 401, 443, 467, 479, 487, 491, 499, 503, 557, 571, 577, 647, 677, 743, 761, 787, 829, 863, 911, 937, 941, 947, 971, 977, 983, 1109, 1187, 1193, 1291, 1327, 1361, 1381, 1399, 1459, 1499, 1553, 1559]

cp's OEIS Frontend

A104485 Primes p = p(k) such that prime(k) + 2 and prime(k+1) + 2 are both semiprimes.

Table of values

List of values