# A218416 (b-file synthesized from sequence entry)
1 117
2 3780
3 66960
4 167400
5 406224
6 1097280
7 6656832
8 13035330
9 29410290
10 4529295360
11 27477725184
12 88071903612
13 1159632322560
14 7035102756864
15 18554223329280
16 22385029489560
17 54934276752360
18 112562288197632
19 125356165141536
20 307631949813216
21 1317932346931200