# A112362 (b-file synthesized from sequence entry)
2 1
3 2
4 2
5 4
6 12
7 16
8 20
9 60
10 148
11 324
12 664
13 1600
14 4956
15 12796
16 27960
17 71596
18 255348
19 725648
20 1748672