A091897 - cp's OEIS frontend

A091897 Numbers that remain prime or composite for all permutations of their digits.

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	11
10	12
11	13
12	15
13	17
14	18
15	21
16	22
17	24
18	25
19	26
20	27
21	28
22	31
23	33
24	36
25	37
26	39
27	40
28	42
29	44
30	45
31	46
32	48
33	49
34	51
35	52
36	54
37	55
38	56
39	57
40	58
41	60
42	62
43	63
44	64
45	65
46	66
47	68
48	69
49	71
50	72
51	73
52	75
53	77
54	78
55	79
56	80
57	81
58	82
59	84
60	85
61	86
62	87
63	88
64	90
65	93
66	94
67	96
68	97
69	99
70	102
71	105

[2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 15, 17, 18, 21, 22, 24, 25, 26, 27, 28, 31, 33, 36, 37, 39, 40, 42, 44, 45, 46, 48, 49, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 71, 72, 73, 75, 77, 78, 79, 80, 81, 82, 84, 85, 86, 87, 88, 90, 93, 94, 96, 97, 99, 102, 105]

cp's OEIS Frontend

A091897 Numbers that remain prime or composite for all permutations of their digits.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	11
10	12
11	13
12	15
13	17
14	18
15	21
16	22
17	24
18	25
19	26
20	27
21	28
22	31
23	33
24	36
25	37
26	39
27	40
28	42
29	44
30	45
31	46
32	48
33	49
34	51
35	52
36	54
37	55
38	56
39	57
40	58
41	60
42	62
43	63
44	64
45	65
46	66
47	68
48	69
49	71
50	72
51	73
52	75
53	77
54	78
55	79
56	80
57	81
58	82
59	84
60	85
61	86
62	87
63	88
64	90
65	93
66	94
67	96
68	97
69	99
70	102
71	105

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	11
10	12
11	13
12	15
13	17
14	18
15	21
16	22
17	24
18	25
19	26
20	27
21	28
22	31
23	33
24	36
25	37
26	39
27	40
28	42
29	44
30	45
31	46
32	48
33	49
34	51
35	52
36	54
37	55
38	56
39	57
40	58
41	60
42	62
43	63
44	64
45	65
46	66
47	68
48	69
49	71
50	72
51	73
52	75
53	77
54	78
55	79
56	80
57	81
58	82
59	84
60	85
61	86
62	87
63	88
64	90
65	93
66	94
67	96
68	97
69	99
70	102
71	105

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	11
10	12
11	13
12	15
13	17
14	18
15	21
16	22
17	24
18	25
19	26
20	27
21	28
22	31
23	33
24	36
25	37
26	39
27	40
28	42
29	44
30	45
31	46
32	48
33	49
34	51
35	52
36	54
37	55
38	56
39	57
40	58
41	60
42	62
43	63
44	64
45	65
46	66
47	68
48	69
49	71
50	72
51	73
52	75
53	77
54	78
55	79
56	80
57	81
58	82
59	84
60	85
61	86
62	87
63	88
64	90
65	93
66	94
67	96
68	97
69	99
70	102
71	105