# A030901 (b-file synthesized from sequence entry)
1 2
2 4
3 13
4 54
5 270
6 1622
7 11357
8 90862
9 817762
10 8177627
11 89953897
12 1079446768
13 14032807993
14 196459311909
15 2946889678635
16 47150234858160
17 801553992588732
18 14427971866597189
19 274131465465346608
20 5482629309306932177