# A192239 (b-file synthesized from sequence entry)
1 0
2 1
3 3
4 13
5 71
6 463
7 3497
8 29975
9 287265
10 3042545
11 35284315
12 444617525
13 6048575335
14 88347242335
15 1378930649745
16 22903345844335
17 403342641729665
18 7506843094993825
19 147226845692229875
20 3034786640911840925
21 65592491119118514375