A109945 - cp's OEIS frontend

A109945 Primes p such that [p,p+2] is a pair of twin primes and (p*(p+2)-1)/2 is prime.

n	a(n)
1	3
2	5
3	11
4	29
5	41
6	71
7	137
8	281
9	461
10	599
11	641
12	827
13	881
14	1091
15	1301
16	1607
17	2129
18	2267
19	2381
20	2687
21	3527
22	3557
23	3581
24	4127
25	4229
26	4337
27	4547
28	5009
29	5741
30	6131
31	6791
32	6959
33	7211
34	7487
35	7547
36	8009
37	8597
38	8861
39	9041
40	9281
41	10007
42	10037
43	10427
44	10889
45	11117

[3, 5, 11, 29, 41, 71, 137, 281, 461, 599, 641, 827, 881, 1091, 1301, 1607, 2129, 2267, 2381, 2687, 3527, 3557, 3581, 4127, 4229, 4337, 4547, 5009, 5741, 6131, 6791, 6959, 7211, 7487, 7547, 8009, 8597, 8861, 9041, 9281, 10007, 10037, 10427, 10889, 11117]

cp's OEIS Frontend

A109945 Primes p such that [p,p+2] is a pair of twin primes and (p*(p+2)-1)/2 is prime.

Table of values

List of values