# A146219 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 3
6 9
7 20
8 63
9 272
10 1557
11 10412
12 77761
13 729051
14 8641753
15 126757272
16 2289847876
17 50015283552
18 1327280079169
19 43398915228962
20 1753679030593542
21 87293853894564783
22 5311141506545315135
23 394710940436034575590