A175974 - OEIS

A175974 as a simple table

n	a(n)
1	2
2	149
3	191
4	331
5	457
6	499
7	727
8	743
9	761
10	821
11	877
12	881
13	991
14	1009
15	1171
16	1213
17	1277
18	1399
19	1409
20	1451
21	1471
22	1543
23	1567
24	1787
25	1801
26	1871
27	1889
28	1949
29	1973
30	2039
31	2053
32	2063
33	2153
34	2179
35	2531
36	2671
37	2837
38	2861
39	3023
40	3203
41	3449
42	3457
43	3779
44	4001
45	4201

[2,149,191,331,457,499,727,743,761,821,877,881, 991,1009,1171,1213,1277,1399,1409,1451,1471,1543, 1567,1787,1801,1871,1889,1949,1973,2039,2053,2063, 2153,2179,2531,2671,2837,2861,3023,3203,3449,3457, 3779,4001,4201]