# A163735 (b-file synthesized from sequence entry)
1 1
2 2
3 9
4 13
5 29
6 87
7 299
8 917
9 2589
10 7059
11 19075
12 51111
13 135445
14 355377
15 925723
16 2398807
17 6190289
18 15920685
19 40835851
20 104520403
21 267077847