# A005850 (b-file synthesized from sequence entry)
1 3
2 5
3 7
4 19
5 29
6 47
7 59
8 163
9 257
10 421
11 937
12 947
13 1493
14 1901
15 6689
16 8087
17 9679
18 28753
19 79043
20 129127
21 145969
22 165799
23 168677
24 170413
25 172243