# A321940 (b-file synthesized from sequence entry)
0 1
1 48
2 4608
3 3317760
4 127401984
5 214035333120
6 308210879692800
7 2958824445050880
8 5680942934497689600
9 134979204123665104896000
10 18141205034220590098022400
11 56600559706768241105829888000