A256237 - cp's OEIS frontend

A256237 Primes p such that for all 2^k < p the numbers p + 2^k, p - 2^k, p2^k + 1, and p2^k - 1 are composite.

n	a(n)
1	8923
2	24943
3	35437
4	42533
5	52783
6	83437
7	105953
8	116437
9	126631
10	133241
11	145589
12	164729
13	172331
14	192173
15	204013
16	215279
17	254329
18	304709
19	308899
20	398833
21	430499
22	436687
23	454351
24	476869
25	479909
26	483443
27	497597
28	522479
29	527729
30	529103
31	545257
32	561439
33	562651

[8923, 24943, 35437, 42533, 52783, 83437, 105953, 116437, 126631, 133241, 145589, 164729, 172331, 192173, 204013, 215279, 254329, 304709, 308899, 398833, 430499, 436687, 454351, 476869, 479909, 483443, 497597, 522479, 527729, 529103, 545257, 561439, 562651]

cp's OEIS Frontend

A256237 Primes p such that for all 2^k < p the numbers p + 2^k, p - 2^k, p2^k + 1, and p2^k - 1 are composite.

Table of values

List of values

cp's OEIS Frontend

A256237 Primes p such that for all 2^k < p the numbers p + 2^k, p - 2^k, p*2^k + 1, and p*2^k - 1 are composite.

Table of values

List of values

A256237 Primes p such that for all 2^k < p the numbers p + 2^k, p - 2^k, p2^k + 1, and p2^k - 1 are composite.