# A071749 (b-file synthesized from sequence entry)
0 1
1 4
2 14
3 48
4 166
5 578
6 2029
7 7182
8 25623
9 92078
10 333064
11 1211896
12 4433175
13 16294856
14 60155235
15 222950730
16 829284435
17 3094726590
18 11583668940
19 43478013360
20 163606061280
21 617094776844
22 2332666266954
23 8835573652892