A091898 - cp's OEIS frontend

A091898 Numbers that change from composite to prime or vice versa for at least one permutation of their digits.

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	101
30	103
31	104
32	106
33	107
34	109
35	110
36	112
37	115
38	118
39	119
40	121
41	124
42	125
43	127
44	128
45	130
46	133
47	134
48	136
49	137
50	139
51	140
52	142
53	143
54	145
55	146
56	149
57	151
58	152
59	154

[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, 101, 103, 104, 106, 107, 109, 110, 112, 115, 118, 119, 121, 124, 125, 127, 128, 130, 133, 134, 136, 137, 139, 140, 142, 143, 145, 146, 149, 151, 152, 154]

cp's OEIS Frontend

A091898 Numbers that change from composite to prime or vice versa for at least one permutation of their digits.

Table of values

List of values

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	101
30	103
31	104
32	106
33	107
34	109
35	110
36	112
37	115
38	118
39	119
40	121
41	124
42	125
43	127
44	128
45	130
46	133
47	134
48	136
49	137
50	139
51	140
52	142
53	143
54	145
55	146
56	149
57	151
58	152
59	154

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	101
30	103
31	104
32	106
33	107
34	109
35	110
36	112
37	115
38	118
39	119
40	121
41	124
42	125
43	127
44	128
45	130
46	133
47	134
48	136
49	137
50	139
51	140
52	142
53	143
54	145
55	146
56	149
57	151
58	152
59	154

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	101
30	103
31	104
32	106
33	107
34	109
35	110
36	112
37	115
38	118
39	119
40	121
41	124
42	125
43	127
44	128
45	130
46	133
47	134
48	136
49	137
50	139
51	140
52	142
53	143
54	145
55	146
56	149
57	151
58	152
59	154