# A376932 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 18
4 166
5 1806
6 20382
7 272706
8 8323326
9 158143194
10 4319806194
11 139715547110
12 4563596609414
13 154716297384250
14 6051527318503338
15 315946019303255670
16 18477283150919171654
17 1191953715632050834242
18 76457609628854745786262
19 4838004466153152832995822
20 312401901306255000752991994
21 20039165126917559409941672886