# A317169 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 12
4 61
5 375
6 2699
7 22232
8 206086
9 2122110
10 24023623
11 296474178
12 3960532707
13 56931074109
14 876098828097
15 14369369855760
16 250215898045984
17 4609913757678432
18 89586669708676510
19 1831372328505086980
20 39284382532454768754
21 882269612910279500214
22 20703128006754726971507