A298643 - cp's OEIS frontend

A298643 Array A(n, k) read by antidiagonals downwards: k-th base-n non-repunit prime p such that all numbers resulting from switching any two adjacent digits in the base-n representation of p are prime, where k runs over the positive integers, i.e., the offset of k is 1.

n	a(n)
2	11
3	191
4	2
5	223
6	5
7	2
8	227
9	7
10	3
11	2
12	2111
13	17
14	7
15	3
16	2
17	3847
18	31
19	13
20	7
21	3
22	2
23	229631
24	41
25	23
26	11
27	5
28	3
29	2
30	246271
31	53
32	29
33	13
34	11
35	5
36	3
37	2
38	262111
39	157
40	47
41	17
42	31
43	11
44	5
45	3
46	2
47	786431
48	229
49	53
50	19
51	47
52	13
53	7
54	5
55	3
56	2
57	1046527
58	239
59	101
60	23
61	71
62	17
63	13
64	7
65	5

[11, 191, 2, 223, 5, 2, 227, 7, 3, 2, 2111, 17, 7, 3, 2, 3847, 31, 13, 7, 3, 2, 229631, 41, 23, 11, 5, 3, 2, 246271, 53, 29, 13, 11, 5, 3, 2, 262111, 157, 47, 17, 31, 11, 5, 3, 2, 786431, 229, 53, 19, 47, 13, 7, 5, 3, 2, 1046527, 239, 101, 23, 71, 17, 13, 7, 5]

cp's OEIS Frontend

A298643 Array A(n, k) read by antidiagonals downwards: k-th base-n non-repunit prime p such that all numbers resulting from switching any two adjacent digits in the base-n representation of p are prime, where k runs over the positive integers, i.e., the offset of k is 1.

Table of values

List of values