A256388 - cp's OEIS frontend

A256388 Numbers n such that a single prime is the arithmetic mean of 2 semiprimes whose difference is 2*n.

n	a(n)
1	1
2	3
3	9
4	15
5	27
6	39
7	57
8	69
9	99
10	105
11	135
12	147
13	177
14	189
15	195
16	225
17	237
18	267
19	279
20	309
21	345
22	417
23	429
24	459
25	519
26	567
27	597
28	615
29	639
30	657
31	807
32	819
33	825
34	855
35	879
36	1017
37	1029
38	1047
39	1059
40	1089
41	1149
42	1227
43	1275
44	1287
45	1299
46	1317
47	1425
48	1449
49	1479
50	1485
51	1605

[1, 3, 9, 15, 27, 39, 57, 69, 99, 105, 135, 147, 177, 189, 195, 225, 237, 267, 279, 309, 345, 417, 429, 459, 519, 567, 597, 615, 639, 657, 807, 819, 825, 855, 879, 1017, 1029, 1047, 1059, 1089, 1149, 1227, 1275, 1287, 1299, 1317, 1425, 1449, 1479, 1485, 1605]

cp's OEIS Frontend

A256388 Numbers n such that a single prime is the arithmetic mean of 2 semiprimes whose difference is 2*n.

Table of values

List of values