A165280 - cp's OEIS frontend

A165280 If p and q are twin primes then pq + 1 is always divisible by 3, except for (p,q)=(3,5). Sequence gives values of (pq + 1)/3.

n	a(n)
1	12
2	48
3	108
4	300
5	588
6	1200
7	1728
8	3468
9	3888
10	6348
11	7500
12	10800
13	12288
14	13068
15	17328
16	19200
17	24300
18	26508
19	32448
20	40368
21	58800
22	62208
23	71148
24	90828
25	108300
26	120000
27	127308
28	137388
29	145200
30	218700
31	225228
32	228528
33	245388
34	259308
35	346800

[12, 48, 108, 300, 588, 1200, 1728, 3468, 3888, 6348, 7500, 10800, 12288, 13068, 17328, 19200, 24300, 26508, 32448, 40368, 58800, 62208, 71148, 90828, 108300, 120000, 127308, 137388, 145200, 218700, 225228, 228528, 245388, 259308, 346800]

cp's OEIS Frontend

A165280 If p and q are twin primes then pq + 1 is always divisible by 3, except for (p,q)=(3,5). Sequence gives values of (pq + 1)/3.

Table of values

List of values