# A101613 (b-file synthesized from sequence entry)
1 3
2 26
3 684
4 35664
5 3068640
6 392722560
7 69878833920
8 16484477184000
9 4976250951168000
10 1870345490614272000
11 856314330237628416000
12 469109144339151224832000
13 302956190548293037916160000