# A190908 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 15
4 49
5 163
6 549
7 1875
8 6477
9 22571
10 79213
11 279631
12 991985
13 3533707
14 12632909
15 45301795
16 162890781
17 587091795
18 2120442517
19 7672891151
20 27811187377
21 100956896179
22 366983328885
23 1335662387699