# A110137 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 22
4 79
5 286
6 1071
7 4070
8 15721
9 61506
10 243703
11 977366
12 3968169
13 16313842
14 67942539
15 286769518
16 1227194947
17 5326324598
18 23451408843
19 104753097326
20 474663076539
21 2181355670806
22 10163422480887
23 47988508807190