# A318364 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 28
4 197
5 1676
6 16597
7 186796
8 2350105
9 32634928
10 495207881
11 8144456684
12 144204493765
13 2733218222944
14 55188182951917
15 1182163846918156
16 26765995313355953
17 638508459302742464
18 16002492517241163793
19 420279349847440766284
20 11540406000681962458141
21 330624627443307824367616