# A321239 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 16
4 141
5 1534
6 19111
7 262103
8 3853373
9 59763670
10 966945204
11 16191250596
12 278933800080
13 4921604827876
14 88627915588351
15 1624349874930925
16 30231112607904743
17 570284342486800214
18 10887435073866747752
19 210086404047975194316
20 4092940691144348506396
21 80432925119259253535963