# A061173 (b-file synthesized from sequence entry)
0 3
1 70
2 642
3 4055
4 20945
5 95372
6 398290
7 1561683
8 5836190
9 21001410
10 73300478
11 249476600
12 831342517
13 2720979140
14 8768966810
15 27881856697
16 87610794135
17 272424413508
18 839229287580
19 2563768831145
20 7773145679478