# A319177 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 39
4 500
5 7990
6 156684
7 3640392
8 97543088
9 2960758800
10 100428661440
11 3764849536800
12 154567280328768
13 6897265807262064
14 332386213584653760
15 17204016957686536320
16 951852354201532742400
17 56059949872552858763520
18 3501729575599545174352896
19 231227806715994322631352960