# A356572 (b-file synthesized from sequence entry)
0 0
1 1
2 3
3 10
4 45
5 307
6 2718
7 26371
8 265359
9 2778976
10 30916863
11 372113623
12 4873075056
13 68908186765
14 1037694932823
15 16438615126282
16 271972422548361
17 4687666317874495
18 84181305836224422
19 1576083180118379527
20 30757003280682603699
21 624671260245315540568