A378795 - cp's OEIS frontend

A378795 Ulam numbers that are semiprimes.

n	a(n)
1	4
2	6
3	26
4	38
5	57
6	62
7	69
8	77
9	82
10	87
11	106
12	145
13	155
14	177
15	206
16	209
17	219
18	221
19	253
20	309
21	319
22	339
23	341
24	358
25	382
26	451
27	485
28	497
29	502
30	566
31	685
32	695
33	734
34	781
35	849
36	866
37	893
38	905
39	949
40	1018
41	1037
42	1079
43	1081
44	1101
45	1157
46	1167
47	1169
48	1186
49	1191
50	1257
51	1313
52	1355

[4, 6, 26, 38, 57, 62, 69, 77, 82, 87, 106, 145, 155, 177, 206, 209, 219, 221, 253, 309, 319, 339, 341, 358, 382, 451, 485, 497, 502, 566, 685, 695, 734, 781, 849, 866, 893, 905, 949, 1018, 1037, 1079, 1081, 1101, 1157, 1167, 1169, 1186, 1191, 1257, 1313, 1355]

cp's OEIS Frontend

A378795 Ulam numbers that are semiprimes.

Table of values

List of values