A268350 - cp's OEIS frontend

A268350 Primes p where q = p + 4 is also prime and rad((p+1)(p+2)(p+3)) < pq, where rad(k) is the largest squarefree number dividing k.

n	a(n)
1	7
2	13
3	79
4	97
5	223
6	349
7	673
8	1087
9	1213
10	1663
11	3697
12	13309
13	13687
14	16927
15	20479
16	21139
17	25999
18	32797
19	33613
20	78649
21	122449
22	151549
23	263167
24	401407
25	651247
26	1058749
27	1656247
28	1893373
29	2060449
30	2146687
31	3058873
32	3276799
33	3733207
34	3866623
35	3880897
36	4070197

[7, 13, 79, 97, 223, 349, 673, 1087, 1213, 1663, 3697, 13309, 13687, 16927, 20479, 21139, 25999, 32797, 33613, 78649, 122449, 151549, 263167, 401407, 651247, 1058749, 1656247, 1893373, 2060449, 2146687, 3058873, 3276799, 3733207, 3866623, 3880897, 4070197]

cp's OEIS Frontend

A268350 Primes p where q = p + 4 is also prime and rad((p+1)(p+2)(p+3)) < pq, where rad(k) is the largest squarefree number dividing k.

Table of values

List of values