# A150426 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 24
4 97
5 390
6 1668
7 7196
8 31867
9 142529
10 646589
11 2956045
12 13635663
13 63282220
14 295455178
15 1386058114
16 6530966051
17 30887833937
18 146579346293
19 697658231680
20 3329494641302
21 15927935970220
22 76363918636170
23 366839522357130
24 1765432350025326
25 8510291863289516
26 41086472127691990
27 198638290621965200