# A205502 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 26
5 153
6 1230
7 13364
8 196940
9 3964902
10 110220876
11 4272079445
12 232593337728
13 17882578732969
14 1948605911230499
15 301712214427188701
16 66502429409739480660
17 20895237675211683912974
18 9368442364990639729658716
19 5998494566458610304486161295