# A334734 (b-file synthesized from sequence entry)
1 1
2 16
3 648
4 55296
5 207360000
6 10749542400
7 23044331520000
8 220242357780480000
9 5780040437590917120000
10 3538800267912806400000000
11 115398507336502660300800000000
12 5264387585885382160794255360000000
13 1835850718442886445597615718400000000