# A034740 (b-file synthesized from sequence entry)
1 1
2 3
3 6
4 15
5 31
6 92
7 267
8 1023
9 4404
10 21705
11 116999
12 680790
13 4217693
14 27653099
15 190915798
16 1382993235
17 10480207683
18 82865009684
19 682077068303
20 5832742772351
21 51724159284888
22 474869818486877
23 4506715742641627