# A101220 (b-file synthesized from sequence entry)
0 0
1 1
2 3
3 14
4 91
5 820
6 9650
7 140601
8 2440317
9 49109632
10 1123595495
11 28792920872
12 816742025772
13 25402428294801
14 859492240650847
15 31427791175659690
16 1234928473553777403
17 51893300561135516404
18 2322083099525697299278