A224491 - cp's OEIS frontend

A224491 Smallest k such that k2p(n)^2-1=q is prime k2q^2-1=r k2r^2-1=s, r and s are also prime.

n	a(n)
1	705
2	1
3	306
4	390
5	2539
6	526
7	1939
8	439
9	7048
10	286
11	561
12	985
13	90
14	2385
15	2089
16	328
17	2266
18	664
19	4245
20	2451
21	453
22	391
23	411
24	406
25	4068
26	4975
27	8151
28	199
29	834
30	4423
31	169
32	76
33	5710
34	861
35	3930
36	1659
37	1246
38	2838
39	750
40	153
41	8664
42	3730
43	1195
44	7815
45	1746
46	1735
47	594
48	985

[705, 1, 306, 390, 2539, 526, 1939, 439, 7048, 286, 561, 985, 90, 2385, 2089, 328, 2266, 664, 4245, 2451, 453, 391, 411, 406, 4068, 4975, 8151, 199, 834, 4423, 169, 76, 5710, 861, 3930, 1659, 1246, 2838, 750, 153, 8664, 3730, 1195, 7815, 1746, 1735, 594, 985]

cp's OEIS Frontend

A224491 Smallest k such that k2p(n)^2-1=q is prime k2q^2-1=r k2r^2-1=s, r and s are also prime.

Table of values

List of values

cp's OEIS Frontend

A224491 Smallest k such that k*2*p(n)^2-1=q is prime k*2*q^2-1=r k*2*r^2-1=s, r and s are also prime.

Table of values

List of values

A224491 Smallest k such that k2p(n)^2-1=q is prime k2q^2-1=r k2r^2-1=s, r and s are also prime.