# A356575 (b-file synthesized from sequence entry)
0 1
1 0
2 2
3 6
4 24
5 185
6 990
7 9877
8 72968
9 824553
10 8495560
11 102689741
12 1317098772
13 18729163609
14 270642677396
15 4396374315075
16 73997950572016
17 1318896555293137
18 24900891903482832
19 499312682762581945
20 10301544926241347140
21 227464062944112566481