# A199399 (b-file synthesized from sequence entry)
0 1
1 4
2 29
3 96
4 529
5 3620
6 13101
7 66048
8 325601
9 1653380
10 9189501
11 40187552
12 216562929
13 1143607140
14 5098589837
15 26660767488
16 161932208321
17 635945960964
18 4313170161629
19 20567937335008
20 74804061006033
21 551572049610276
22 2689136522898669
23 10088864973699328
24 67578042506892449