# A049351 (b-file synthesized from sequence entry)
1 1
2 16
3 151
4 1051
5 7072
6 52189
7 387961
8 2803408
9 20262175
10 147578083
11 1074220864
12 7803627829
13 56703899473
14 412249980976
15 2996844053479
16 21782472167851
17 158330928308704
18 1150906042354381
19 8365826645067625
20 60809849516721040