# A126419 (b-file synthesized from sequence entry)
0 1
1 32
2 154
3 750
4 3668
5 17986
6 88348
7 434524
8 2139230
9 10540030
10 51964360
11 256332260
12 1265027930
13 6245522700
14 30845183058
15 152383470186
16 753018119972
17 3722010001906
18 18401089523298
19 90990129769076
20 450009665618408