A227888 - cp's OEIS frontend

A227888 Smallest odd k such that k2^n-1, k2^n-1+2j, k2^n-1+4j or k2^n-1-2j, k2^n-1, k2^n-1+2j are consecutive primes in arithmetic progression for some j.

n	a(n)
1	3
2	1
3	19
4	3
5	19
6	273
7	93
8	113
9	87
10	35
11	31
12	143
13	31
14	15
15	315
16	779
17	207
18	347
19	91
20	327
21	291
22	351
23	195
24	39
25	1911
26	971
27	1083
28	435
29	1345
30	593
31	183
32	1295
33	291
34	2553
35	735
36	1113
37	31
38	131
39	61
40	209
41	379
42	567
43	2331
44	1907
45	4429
46	23
47	453
48	1517
49	2281
50	2187
51	1441
52	4847
53	1975

[3, 1, 19, 3, 19, 273, 93, 113, 87, 35, 31, 143, 31, 15, 315, 779, 207, 347, 91, 327, 291, 351, 195, 39, 1911, 971, 1083, 435, 1345, 593, 183, 1295, 291, 2553, 735, 1113, 31, 131, 61, 209, 379, 567, 2331, 1907, 4429, 23, 453, 1517, 2281, 2187, 1441, 4847, 1975]

cp's OEIS Frontend

A227888 Smallest odd k such that k2^n-1, k2^n-1+2j, k2^n-1+4j or k2^n-1-2j, k2^n-1, k2^n-1+2j are consecutive primes in arithmetic progression for some j.

Table of values

List of values

cp's OEIS Frontend

A227888 Smallest odd k such that k*2^n-1, k*2^n-1+2*j, k*2^n-1+4*j or k*2^n-1-2*j, k*2^n-1, k*2^n-1+2*j are consecutive primes in arithmetic progression for some j.

Table of values

List of values

A227888 Smallest odd k such that k2^n-1, k2^n-1+2j, k2^n-1+4j or k2^n-1-2j, k2^n-1, k2^n-1+2j are consecutive primes in arithmetic progression for some j.