# A346747 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 20
5 79
6 357
7 1783
8 9788
9 58361
10 374581
11 2571851
12 18779928
13 145163975
14 1183028095
15 10129297307
16 90843458256
17 851083079649
18 8309588493841
19 84370700833147
20 889152061199144
21 9709123938880103
22 109677977422359703
23 1279880472867083111
24 15408386793144717536