A227276 - cp's OEIS frontend

A227276 Primes p for which p^2 + p - 1 = q*r (q such that q, r, p^2 + q - 1 and p^2 + r - 1 are primes.

n	a(n)
1	7
2	17
3	23
4	61
5	67
6	71
7	79
8	151
9	307
10	311
11	383
12	389
13	409
14	439
15	613
16	677
17	1559
18	1627
19	1637
20	2377
21	2719
22	2801
23	3407
24	3821
25	4229
26	4799
27	4919
28	5557
29	5641
30	5743
31	5779
32	5851
33	5867
34	6133
35	6733
36	7121
37	7723
38	8009
39	8527
40	8573
41	10163
42	10729
43	11317
44	11789
45	11987
46	14107
47	14629
48	14653
49	14669
50	17189
51	17401
52	18077

[7, 17, 23, 61, 67, 71, 79, 151, 307, 311, 383, 389, 409, 439, 613, 677, 1559, 1627, 1637, 2377, 2719, 2801, 3407, 3821, 4229, 4799, 4919, 5557, 5641, 5743, 5779, 5851, 5867, 6133, 6733, 7121, 7723, 8009, 8527, 8573, 10163, 10729, 11317, 11789, 11987, 14107, 14629, 14653, 14669, 17189, 17401, 18077]

cp's OEIS Frontend

A227276 Primes p for which p^2 + p - 1 = q*r (q such that q, r, p^2 + q - 1 and p^2 + r - 1 are primes.

Table of values

List of values