# A353018 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 28
4 257
5 3129
6 46684
7 823800
8 16780345
9 387467173
10 10000823800
11 285328450956
12 8916487915429
13 302885107416053
14 11112292154008972
15 437902806868774804
16 18447046958816967669
17 827251374178490773149
18 39346845978103406350228