A164623 - cp's OEIS frontend

A164623 Primes p such that p(p-1)/2-5 and p(p-1)/2+5 are also prime numbers.

n	a(n)
1	13
2	157
3	673
4	1069
5	1117
6	1153
7	1213
8	1597
9	2029
10	2089
11	2437
12	2713
13	2833
14	3613
15	4057
16	4909
17	5653
18	6337
19	6529
20	7549
21	7993
22	8053
23	9613
24	10789
25	11497
26	11689
27	12073
28	12373
29	13309
30	13669
31	13789
32	14173
33	15289
34	15937
35	16249
36	18097
37	18637
38	19249
39	19993

[13, 157, 673, 1069, 1117, 1153, 1213, 1597, 2029, 2089, 2437, 2713, 2833, 3613, 4057, 4909, 5653, 6337, 6529, 7549, 7993, 8053, 9613, 10789, 11497, 11689, 12073, 12373, 13309, 13669, 13789, 14173, 15289, 15937, 16249, 18097, 18637, 19249, 19993]

cp's OEIS Frontend

A164623 Primes p such that p(p-1)/2-5 and p(p-1)/2+5 are also prime numbers.

Table of values

List of values

cp's OEIS Frontend

A164623 Primes p such that p*(p-1)/2-5 and p*(p-1)/2+5 are also prime numbers.

Table of values

List of values

A164623 Primes p such that p(p-1)/2-5 and p(p-1)/2+5 are also prime numbers.