# A305207 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 13
4 95
5 921
6 11586
7 176324
8 3162447
9 65233120
10 1521743103
11 39609506223
12 1138093049808
13 35779807446670
14 1221719353617885
15 45025117385882889
16 1781345658408660655
17 75304205654268663567
18 3387556543611248410593
19 161575661076504392490150
20 8144909167115962980271095