# A055222 (b-file synthesized from sequence entry)
0 1
1 8
2 45
3 211
4 891
5 3510
6 13170
7 47672
8 167898
9 578769
10 1961103
11 6552549
12 21641343
13 70784235
14 229620285
15 739640331
16 2368022638
17 7541358405
18 23905443556
19 75468582776
20 237388273398
21 744299007994
22 2326899224352