# A260694 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 4
4 17
5 120
6 915
7 9470
8 104436
9 1432713
10 20709209
11 354493902
12 6343919118
13 130255212146
14 2780356513594
15 66607482974307
16 1651884203936474
17 45240390673466869
18 1278413274487999471
19 39403978336643657797
20 1249821733374560346851
21 42820844948653526713511