# A068100 (b-file synthesized from sequence entry)
1 1
2 1
3 3
4 9
5 45
6 165
7 1605
8 6645
9 82245
10 626565
11 7430565
12 47347365
13 1294747365
14 7521768165
15 166051339365
16 2617940779365
17 45296384587365
18 400983812683365
19 16124008954507365
20 137769109363339365
21 6031874478387211365
22 98938319915632651365
23 1994173630452264715365
24 27846190369337241355365
25 1807180003160859492619365