# A353148 (b-file synthesized from sequence entry)
0 0
1 1
2 12
3 133
4 1464
5 16215
6 178366
7 2073137
8 22814518
9 252060710
10 2772667811
11 31610457022
12 347715137243
13 3835866520674
14 43305642727525
15 476363171113776
16 5351104882252647
17 58862154814780228
18 658583714063682520
19 7355531854711617721
20 82021851512827806032