# A012884 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 5
5 7
6 11
7 13
8 17
9 23
10 31
11 37
12 53
13 71
14 73
15 113
16 131
17 137
18 173
19 197
20 311
21 313
22 317
23 373
24 797
25 1373
26 1997
27 3137
28 3797
29 7331
30 73331
31 739397