# A195262 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 21
4 125
5 805
6 5459
7 38403
8 277667
9 2050771
10 15405655
11 117344350
12 904175038
13 7035182178
14 55197856415
15 436221495843
16 3469249248383
17 27744896161177
18 222987118478532
19 1800106801933350
20 14589674016207940
21 118674224290447850
22 968474133792224994