# A164325 (b-file synthesized from sequence entry)
1 1
2 2
3 2
4 6
5 1170
6 64590
7 25153800
8 25153800
9 4747505070
10 207187349040
11 6703860240000
12 26997529639080
13 1760354281625940
14 1760354281625940
15 10718654377787155800