# A071302 (b-file synthesized from sequence entry)
1 1
2 4
3 24
4 576
5 51840
6 13063680
7 9170703360
8 19808719257600
9 131569513308979200
10 2600339861038664908800
11 152915585868239728626892800
12 27051378802435080953011843891200
13 14395932257291877030764312963579904000