# A369488 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 20
4 101
5 522
6 2860
7 16115
8 93200
9 549286
10 3288633
11 19942666
12 122243210
13 756188245
14 4714629930
15 29595888020
16 186903732003
17 1186606564605
18 7569137651545
19 48486925091800
20 311788811682494
21 2011863788481296
22 13022795014568290
23 84539592912435990