# A123014 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 1
5 25
6 145
7 1225
8 7105
9 28945
10 165025
11 4675825
12 62610625
13 961986025
14 10237051825
15 76785333625
16 824649450625
17 30519166302625
18 643373556450625
19 14253164811510625
20 221377260570090625
21 2460131161228365625
22 39063024216812220625
23 1791544805630470515625