A327822 - cp's OEIS frontend

A327822 Numbers k such that when cyclically permuting the digits of k any number of times, any prime obtained is followed by a composite number and vice-versa.

n	a(n)
1	14
2	16
3	19
4	20
5	23
6	29
7	30
8	32
9	34
10	35
11	38
12	41
13	43
14	47
15	50
16	53
17	59
18	61
19	67
20	70
21	74
22	76
23	83
24	89
25	91
26	92
27	95
28	98
29	1015
30	1018
31	1070
32	1075
33	1099
34	1132
35	1136
36	1163
37	1216
38	1238
39	1274
40	1303
41	1321
42	1339
43	1361
44	1475
45	1510
46	1517
47	1535
48	1570
49	1574
50	1612
51	1630
52	1631
53	1636

[14, 16, 19, 20, 23, 29, 30, 32, 34, 35, 38, 41, 43, 47, 50, 53, 59, 61, 67, 70, 74, 76, 83, 89, 91, 92, 95, 98, 1015, 1018, 1070, 1075, 1099, 1132, 1136, 1163, 1216, 1238, 1274, 1303, 1321, 1339, 1361, 1475, 1510, 1517, 1535, 1570, 1574, 1612, 1630, 1631, 1636]

cp's OEIS Frontend

A327822 Numbers k such that when cyclically permuting the digits of k any number of times, any prime obtained is followed by a composite number and vice-versa.

Table of values

List of values