A179502 - cp's OEIS frontend

A179502 Numbers k with the property that k^2, k^2+1 and k^2+2 are all semiprimes.

n	a(n)
1	11
2	29
3	79
4	271
5	379
6	461
7	521
8	631
9	739
10	881
11	929
12	1459
13	1531
14	1709
15	2161
16	2239
17	2341
18	2729
19	3049
20	3491
21	3709
22	4021
23	4349
24	4561
25	4691
26	5021
27	5281
28	5851
29	5879
30	6301
31	6329
32	6829
33	7559
34	8009
35	9151
36	10069
37	10099
38	10151
39	10529
40	10891
41	11719
42	11959
43	11969
44	13799
45	14051
46	14159

[11, 29, 79, 271, 379, 461, 521, 631, 739, 881, 929, 1459, 1531, 1709, 2161, 2239, 2341, 2729, 3049, 3491, 3709, 4021, 4349, 4561, 4691, 5021, 5281, 5851, 5879, 6301, 6329, 6829, 7559, 8009, 9151, 10069, 10099, 10151, 10529, 10891, 11719, 11959, 11969, 13799, 14051, 14159]

cp's OEIS Frontend

A179502 Numbers k with the property that k^2, k^2+1 and k^2+2 are all semiprimes.

Table of values

List of values