# A371739 (b-file synthesized from sequence entry)
0 1
1 6
2 56
3 576
4 6196
5 68406
6 768212
7 8731848
8 100146724
9 1156626990
10 13432735556
11 156713948672
12 1835237017324
13 21560768699762
14 253994850228896
15 2999267652451776
16 35490014668470052
17 420718526924212654
18 4995548847105422048
19 59402743684137281920