A105174 - cp's OEIS frontend

A105174 Numbers k such that k(k+1)/4 - 1 and k(k+1)/4 + 1 are twin primes.

n	a(n)
1	8
2	15
3	23
4	24
5	71
6	80
7	104
8	128
9	159
10	216
11	231
12	264
13	288
14	303
15	336
16	344
17	455
18	495
19	528
20	543
21	560
22	608
23	624
24	680
25	744
26	816
27	840
28	879
29	896
30	1016
31	1104
32	1311
33	1415
34	1440
35	1464
36	1520
37	1584
38	1599
39	1751
40	1871
41	1896
42	1920
43	1976
44	2015
45	2016
46	2055
47	2088
48	2103
49	2175

[8, 15, 23, 24, 71, 80, 104, 128, 159, 216, 231, 264, 288, 303, 336, 344, 455, 495, 528, 543, 560, 608, 624, 680, 744, 816, 840, 879, 896, 1016, 1104, 1311, 1415, 1440, 1464, 1520, 1584, 1599, 1751, 1871, 1896, 1920, 1976, 2015, 2016, 2055, 2088, 2103, 2175]

cp's OEIS Frontend

A105174 Numbers k such that k(k+1)/4 - 1 and k(k+1)/4 + 1 are twin primes.

Table of values

List of values

cp's OEIS Frontend

A105174 Numbers k such that k*(k+1)/4 - 1 and k*(k+1)/4 + 1 are twin primes.

Table of values

List of values

A105174 Numbers k such that k(k+1)/4 - 1 and k(k+1)/4 + 1 are twin primes.