# A124974 (b-file synthesized from sequence entry)
1 1
2 3
3 5
4 9
5 45
6 99
7 53559
8 1143357
9 2027985
10 36806085
11 1773607905
12 3314574181
13 1045463125509
14 1226640523999
15 3567404505159
16 28726885591099
17 39880799734039
18 87977068273719
19 106436400721299
20 339966033494859
21 999567363539883