A171050 - cp's OEIS frontend

A171050 In the sequence of prime numbers, replace all the '9' digits with '1' and vice versa.

n	a(n)
1	2
2	3
3	5
4	7
5	99
6	93
7	97
8	91
9	23
10	21
11	39
12	37
13	49
14	43
15	47
16	53
17	51
18	69
19	67
20	79
21	73
22	71
23	83
24	81
25	17
26	909
27	903
28	907
29	901
30	993
31	927
32	939
33	937
34	931
35	941
36	959
37	957
38	963
39	967
40	973
41	971
42	989
43	919
44	913
45	917
46	911
47	299
48	223
49	227
50	221
51	233
52	231
53	249
54	259
55	257
56	263

[2, 3, 5, 7, 99, 93, 97, 91, 23, 21, 39, 37, 49, 43, 47, 53, 51, 69, 67, 79, 73, 71, 83, 81, 17, 909, 903, 907, 901, 993, 927, 939, 937, 931, 941, 959, 957, 963, 967, 973, 971, 989, 919, 913, 917, 911, 299, 223, 227, 221, 233, 231, 249, 259, 257, 263]

cp's OEIS Frontend

A171050 In the sequence of prime numbers, replace all the '9' digits with '1' and vice versa.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	7
5	99
6	93
7	97
8	91
9	23
10	21
11	39
12	37
13	49
14	43
15	47
16	53
17	51
18	69
19	67
20	79
21	73
22	71
23	83
24	81
25	17
26	909
27	903
28	907
29	901
30	993
31	927
32	939
33	937
34	931
35	941
36	959
37	957
38	963
39	967
40	973
41	971
42	989
43	919
44	913
45	917
46	911
47	299
48	223
49	227
50	221
51	233
52	231
53	249
54	259
55	257
56	263

n	a(n)
1	2
2	3
3	5
4	7
5	99
6	93
7	97
8	91
9	23
10	21
11	39
12	37
13	49
14	43
15	47
16	53
17	51
18	69
19	67
20	79
21	73
22	71
23	83
24	81
25	17
26	909
27	903
28	907
29	901
30	993
31	927
32	939
33	937
34	931
35	941
36	959
37	957
38	963
39	967
40	973
41	971
42	989
43	919
44	913
45	917
46	911
47	299
48	223
49	227
50	221
51	233
52	231
53	249
54	259
55	257
56	263

n	a(n)
1	2
2	3
3	5
4	7
5	99
6	93
7	97
8	91
9	23
10	21
11	39
12	37
13	49
14	43
15	47
16	53
17	51
18	69
19	67
20	79
21	73
22	71
23	83
24	81
25	17
26	909
27	903
28	907
29	901
30	993
31	927
32	939
33	937
34	931
35	941
36	959
37	957
38	963
39	967
40	973
41	971
42	989
43	919
44	913
45	917
46	911
47	299
48	223
49	227
50	221
51	233
52	231
53	249
54	259
55	257
56	263