# A081722 (b-file synthesized from sequence entry)
1 1
2 4
3 15
4 83
5 561
6 6332
7 88086
8 1561008
9 31966485
10 746278033
11 19441692751
12 559268543516
13 17599832876941
14 601468320356528
15 22182618618501188
16 878172760660077348
17 37144096971415045713
18 1671734397769302244110
19 79770632874353931073165
20 4022719642533206402716726