# A182968 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 9
4 31
5 121
6 540
7 2692
8 14938
9 91599
10 613393
11 4443653
12 34574511
13 287092372
14 2529894464
15 23546940208
16 230556268991
17 2366688840376
18 25394369705598
19 284078044017592
20 3305577581826931
21 39928510807691616
22 499751895103778173