A032709 - cp's OEIS frontend

A032709 Numbers k such that k prefixed by '9' and followed by '1' is prime.

n	a(n)
1	1
2	4
3	7
4	9
5	15
6	16
7	18
8	22
9	24
10	28
11	31
12	34
13	37
14	39
15	42
16	43
17	46
18	49
19	51
20	52
21	55
22	60
23	63
24	66
25	72
26	78
27	79
28	81
29	85
30	87
31	90
32	93
33	94
34	108
35	112
36	114
37	115
38	129
39	133
40	138
41	141
42	154
43	157
44	159
45	162
46	163
47	169
48	171
49	177
50	178
51	180
52	181
53	184
54	192
55	195
56	196
57	204
58	205
59	211
60	222

[1, 4, 7, 9, 15, 16, 18, 22, 24, 28, 31, 34, 37, 39, 42, 43, 46, 49, 51, 52, 55, 60, 63, 66, 72, 78, 79, 81, 85, 87, 90, 93, 94, 108, 112, 114, 115, 129, 133, 138, 141, 154, 157, 159, 162, 163, 169, 171, 177, 178, 180, 181, 184, 192, 195, 196, 204, 205, 211, 222]

cp's OEIS Frontend

A032709 Numbers k such that k prefixed by '9' and followed by '1' is prime.

Table of values

List of values

n	a(n)
1	1
2	4
3	7
4	9
5	15
6	16
7	18
8	22
9	24
10	28
11	31
12	34
13	37
14	39
15	42
16	43
17	46
18	49
19	51
20	52
21	55
22	60
23	63
24	66
25	72
26	78
27	79
28	81
29	85
30	87
31	90
32	93
33	94
34	108
35	112
36	114
37	115
38	129
39	133
40	138
41	141
42	154
43	157
44	159
45	162
46	163
47	169
48	171
49	177
50	178
51	180
52	181
53	184
54	192
55	195
56	196
57	204
58	205
59	211
60	222

n	a(n)
1	1
2	4
3	7
4	9
5	15
6	16
7	18
8	22
9	24
10	28
11	31
12	34
13	37
14	39
15	42
16	43
17	46
18	49
19	51
20	52
21	55
22	60
23	63
24	66
25	72
26	78
27	79
28	81
29	85
30	87
31	90
32	93
33	94
34	108
35	112
36	114
37	115
38	129
39	133
40	138
41	141
42	154
43	157
44	159
45	162
46	163
47	169
48	171
49	177
50	178
51	180
52	181
53	184
54	192
55	195
56	196
57	204
58	205
59	211
60	222

n	a(n)
1	1
2	4
3	7
4	9
5	15
6	16
7	18
8	22
9	24
10	28
11	31
12	34
13	37
14	39
15	42
16	43
17	46
18	49
19	51
20	52
21	55
22	60
23	63
24	66
25	72
26	78
27	79
28	81
29	85
30	87
31	90
32	93
33	94
34	108
35	112
36	114
37	115
38	129
39	133
40	138
41	141
42	154
43	157
44	159
45	162
46	163
47	169
48	171
49	177
50	178
51	180
52	181
53	184
54	192
55	195
56	196
57	204
58	205
59	211
60	222