# A333895 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 14
4 61
5 243
6 1228
7 6684
8 42681
9 304569
10 2445296
11 21676143
12 210409238
13 2213794888
14 25064493886
15 303468325469
16 3909518220091
17 53364222428953
18 769009695515272
19 11663042823897054
20 185651491398956596
21 3094082786005252494
22 53871873427160960819