# A190271 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 22
4 141
5 986
6 7295
7 56145
8 444900
9 3605429
10 29742671
11 248933630
12 2108590305
13 18042013096
14 155711676129
15 1353913728412
16 11849013783676
17 104293377329508
18 922643326714355
19 8199321046129671
20 73162599757076951